1) Leading large projects within a company can expose managers to inadequacies of senior leadership and the inner workings of the organization in a way that makes it difficult to return to their previous role.
2) When projects end, both managers and other staff involved may experience "mourning" over the loss of the intense project environment and camaraderie, making it important to help them transition back to regular roles.
3) Companies should plan new roles for managers exiting projects that build on skills gained and help staff feel recognized for their contributions to mitigate feelings of isolation that could reduce engagement.