According to Vince Lombardi, what is also contagious besides confidence?

Vince Lombardi emphasized the notion that lack of confidence can be just as contagious as confidence itself. This perspective underlines the psychological aspect of team dynamics and the impact that an individual's mindset can have on the group's overall morale and performance. When someone exhibits signs of doubt or insecurity, it can spread to others, leading to a collective decrease in motivation and effectiveness. This concept is crucial in a leadership context, such as in the Air Force, where maintaining a positive and confident atmosphere is essential for mission success. By recognizing that both confidence and lack of confidence can influence the team environment, leaders can take proactive steps to foster a supportive and confident culture among their subordinates.