With Amir, I don't think it matters what position you tell him to play. He's going to be hanging around the paint and playing like Rodman anyways.

I can see where a coach would be nervous to put in Jarvis, Walter, Stuckey, Juan, etc. But it seems to me that putting in AA or Amir is a pretty safe move. The reason is that they almost always deliver with defense and hustle. If they are missing shots, they aren't going to keep shooting them. Also, they avoid turnovers.