Carlos and William are negotiating over their roles on a project team. Carlos wants to take the lead on a certain part of the project, but William thinks he has more experience for taking on that role. Their conversation was starting to get ugly as they both insisted that they were the better choice for being the leader. William wants this badly because he's eyeing a future promotion and having this leadership experience would increase his odds. Carlos, on the other hand, has several mentees on the project and wants to make sure that he's able to develop their skills in the ways he prefers. Once they discussed these reasons, Carlos and William came to terms by allowing William to take the lead formally, but still allowing Carlos to oversee the work of these particular junior members. Which concepts apply to any part of this situation?