Sure, there’s collaboration. The best GMs make sure to gather as much information from their coaches as possible to get a better feel of which players to bring into the program. The best head coaches know exactly what kinds of players will excel in their systems. That was a critically important yet underplayed reason why the Todd Bowles-Mike Maccagnan relationship ultimately dissolved. Maccagnan often times brought in players at a coach’s suggestion only to ultimately realize that the coach didn’t have a firm handle on what he exactly wanted/needed. A fickle coaching staff can ruin a general manager.