Sales managers who balance managing a team and selling to customers need to carefully allocate their time. Research shows that managers who split their time between managing people, planning, customer interaction, and administrative tasks have a positive impact on sales team performance. Interestingly, the experience level of the sales team affects which activities managers should focus on. For more experienced teams, managers should prioritize managing people, while for less experienced teams, customer interaction is key. Effective time management is crucial for sales managers to ensure their teams perform well.