Why did Harry Senate leave?
Harry Senate was the most inspirational figure on the show, and best teacher.
I think that in the shuffling an reshuffling of characters that David E Kelly does without any more thought than that it is a routine activity, the show lost a major asset in Senate.
I think that John Rappapport consciously was made to be a Harry Senate like- figure (btw, agree or disagree?), but he wasn't nearly as good.