There is nothing left to play for this year but respect. Internally the Miami Dolphins are playing for culture change and winning, no matter how much that does not matter in the overall success of a season, breeds a winning mentality.
Winning lifts the mental part of the game for players, especially young ones but there also comes a time when you have to realize that winning is not going to change everything and that finding out about your future might.
This is the case with Josh Rosen. The Dolphins invested two draft picks on Rosen. That is a lot to give up just to evaluate talent.