It's a new coach at the D-3 school. Maybe he just wanted to bring in his own players and didn't like someone that was on the roster?
So a coach would cut a player from a D-3 team, so he could go play on a team at D-1? For this to be collusion doesn't make any sense. There are much better players that are recruitable, even for a low D-1 program. Second point, that player is still available to all other coaches at D-1. I'm not seeing it, how do you figure there is collusion?