The Complex Dynamics of Leadership Qualities and Team Performance
The qualities that make someone appear to be a leader are not always the same qualities that maximize a particular team’s performance. Talkativeness, assertiveness, and a commanding presence are often the visible markers of leadership. Someone who speaks readily, takes charge, and holds the group’s attention can look leader-like even before the team has produced any tangible results.
This visibility partly explains why extraversion has been traditionally linked to leadership emergence and favorable leadership evaluations. However, actual team performance depends heavily on the contributions of the team members themselves, making the relationship between leader personality and team success more nuanced.
In a groundbreaking 2011 study, Adam Grant, Francesca Gino, and David Hofmann revealed a surprising reversal: highly extraverted leaders thrived with passive teams, while less extraverted leaders outperformed when employees were proactive. Their research suggested that a leader’s receptive behavior encourages proactive employees to invest more effort in their work.
Interestingly, this advantage for less extraverted leaders did not stem from simply accepting more suggestions. Even when ideas were not adopted, perceived leader receptivity positively influenced team performance, highlighting the subtle but powerful role of how leader responses are communicated.
Field Evidence from Pizza Stores
The data supporting these findings originated from a real-world environment involving 57 franchise stores of a US pizza delivery company. This field study, published in the Academy of Management Journal, gathered comprehensive data via questionnaires sent to 130 stores, with a 43.1% response rate.
As detailed by the Harvard Business School summary, the sample consisted of 57 store managers and 374 employees, averaging about 6.6 employee respondents per store. Managers self-reported their Big Five personality traits—including extraversion facets such as assertiveness and talkativeness—while employees assessed their colleagues’ behaviors.
Employee proactivity was measured by the frequency of voicing ideas, taking initiative to improve work procedures, and attempting to influence managers. The researchers then correlated these measures with store profitability over the subsequent seven weeks, controlling for variables like average order price and labor hours.
The results showed a crossover interaction: in stores with low employee proactivity, manager extraversion correlated with higher profits; conversely, in stores with high employee proactivity, greater manager extraversion predicted lower profits.
Although the field study offered valuable insights, the authors acknowledged its limitations: managers weren’t randomly assigned personalities, and unmeasured factors could have influenced the results. To complement these findings, a controlled laboratory experiment was designed.
Laboratory Experiment: The T-Shirt Folding Contest
The lab component involved 163 university students divided into 56 groups. Each group had a designated leader, two student followers, and two research assistants acting as confederates. The task was straightforward: fold as many T-shirts as possible in ten minutes, with top performers eligible for prizes like iPod Nanos, ensuring motivation.
Leaders were randomly assigned to enact either an extraverted (bold, talkative, assertive) or introverted (quiet, reserved) leadership style by reading a brief case and recalling a relevant personal experience. This manipulation tested leadership behavior rather than fixed personality traits.
The confederates followed scripted behaviors to simulate team proactivity levels. In the passive condition, they simply followed instructions. In the proactive condition, one confederate questioned current methods while the other proposed a faster Japanese folding technique.
Results mirrored field findings: with passive confederates, extraverted leaders led teams folding an average of 167.93 shirts, outperforming the introverted leaders’ 137.64. However, when confederates were proactive, introverted leaders’ teams averaged 175.43 shirts, significantly surpassing the 142.00 shirts folded under extraverted leadership.
Follower Effort Drives Performance Differences
The increase in team output under introverted leaders with proactive followers was not due to the leaders themselves folding more shirts. Leadership style and proactivity did not significantly change leader output; the difference arose solely from followers’ performance.
In proactive groups, followers working with less-extraverted leaders folded an average of 59.64 shirts, compared to 46.61 shirts under more-extraverted leaders. When confederates were passive, this difference was not statistically significant.
Followers also rated leaders on openness, receptivity, and interest in their contributions. Less-extraverted leaders scored higher on perceived receptivity (5.35 on a 7-point scale) than extraverted leaders (4.32) in the proactive condition.
Mediation analysis suggested that follower perceptions of leader receptivity explained the higher follower effort. In other words, proactive employees worked harder when they felt their input was genuinely considered.
This finding refines earlier understandings of leadership emergence, emphasizing that while airtime and assertiveness can help someone be recognized as a leader, they do not guarantee better team performance.
Receptivity Versus Agreement: A Crucial Distinction
One might assume that less-extraverted leaders performed better because they accepted more of the proactive followers’ suggestions. However, the data did not support this. In proactive groups, 57.1% of low-extraversion leaders accepted the new folding method, versus 69.2% of high-extraversion leaders—a difference that was not statistically significant.
Moreover, accepting the suggestion did not significantly improve team output. Teams with leaders who adopted the method folded 161.82 shirts on average, compared to 156.60 when leaders rejected it. The short ten-minute task likely limited the time to leverage the new technique fully.
This highlights that receptivity to ideas is not the same as agreement. A leader can listen attentively, ask clarifying questions, and thoughtfully consider input without necessarily endorsing it. Conversely, a leader can superficially approve an idea while signaling indifference or impatience.
Employees pick up on these nuanced signals, influencing whether they feel it is worthwhile to share future ideas. A “no” can still communicate “your judgment is valued in this room,” fostering continued engagement.
Feeling Valued: A Motivational Interpretation
The authors theorized that when employees perceive their leaders as valuing their contributions, they feel motivated to contribute more, believing their efforts will matter. Conversely, dismissive leadership can erode this motivation.
It is important to note that this “feeling valued” was not directly measured but inferred. The study directly assessed perceived leader receptivity and objectively measured output (shirts folded). Effort was inferred from output, and feeling valued served as a plausible explanatory mechanism.
While statistical mediation supported this pathway, alternative explanations—such as improved attention, coordination, comfort, or confidence—could also account for the effect.
Leadership Style and Team Proactivity: A Fit, Not a Formula
The study’s key takeaway is not a blanket endorsement of introverted leadership but a nuanced matching of leadership style to team dynamics. More-extraverted leaders excelled with passive teams, providing needed direction and momentum. Less-extraverted leaders thrived with proactive teams, allowing employee initiative to flourish without competition for control.
This dynamic is explained by dominance complementarity: assertiveness on both sides can cause friction, while a balance—initiative from one side met with receptivity on the other—can enhance performance.
Importantly, extraversion is not a fixed trait that dictates leadership effectiveness. Leaders can adapt their style by pausing to listen, inviting dissent, and demonstrating genuine consideration for suggestions. Similarly, reserved leaders can be more directive when clarity and decisiveness are needed.
The experimental manipulation itself showed that people can temporarily enact varying levels of extraverted behavior, emphasizing style flexibility over rigid personality labels.
It is also essential to recognize that not all proactive suggestions merit adoption. The study tested a constructive idea with potential benefit, highlighting the importance of discernment in leadership decision-making.
Limitations and Contextual Considerations
Both studies focused on structured, repetitive, effort-based work—delivering pizzas and folding T-shirts. The authors explicitly cautioned that these patterns might not generalize to complex, creative, or knowledge-intensive tasks where expertise and innovation are more critical.
The field study’s sample, though valuable, was modest and limited to one company, relying on self-reported traits and employee ratings. The laboratory experiment featured young university students engaged in a short-term, artificially scripted task, lacking the depth and complexity of real-world workplaces with established hierarchies and career consequences.
Additionally, a 2023 data provenance disclosure by Adam Grant revealed that Francesca Gino conducted the laboratory study and that Grant never possessed its raw data. The data are currently under audit, and while the paper remains published by the Academy of Management, this raises important cautions around the interpretation of the lab findings.
Therefore, these findings should not be considered universal laws but rather insightful contributions to understanding leadership-team fit, with some unresolved questions in the laboratory evidence.
Practical Implications: Receptivity Over Personality Labels
The practical lesson for organizations is to focus less on fixed personality labels when selecting leaders and more on the alignment between leadership expression and team initiative levels.
Teams that are hesitant and less proactive may benefit from leaders who set clear direction, speak first, and generate momentum. In contrast, teams rich in proactive individuals may need leaders who can resist dominating conversations and instead create space for contributions.
This receptivity manifests in subtle behaviors: allowing others to finish speaking, asking clarifying questions before defending one’s view, explaining rejections without disparaging suggestions, and crediting others when ideas influence plans.
Such behaviors do not require leaders to relinquish judgment but communicate that employee voices are genuinely processed rather than merely tolerated or dismissed.
While the most vocal individual often emerges as the recognized leader, Grant, Gino, and Hofmann’s research suggests that in proactive teams, the more impactful leadership skill may be knowing when to hold back—to leave enough silence for others to continue contributing.
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