I was never a Griese fan.  One thing that stood out was a call in to a talk radio show, it might have been The Fan or one of the other stations back then and was before the pre-season.  It might have been Bronco Billy but the caller said that Griese was not well liked in the Michigan locker room and was sort of a tool.  I have never heard anything negative about Trevor in any locker room.  His teammates last year were behind him all year because he played with a very badly separated shoulder and never complained about his pain or about the play of the O-Line.   I will be amazed if Siemian plays as bad as BG.