It is really hard to guess what could of or would have happened. Jose has played much more inspired and confident basketball since Jack left - maybe Jack would have done the same. We do not know what happened behind the scenes but it is quite obvious that something changed with Jack early this season.
As for hindsight on what has happened, I am in total agreement things could not have worked out better. With that said, going forward I would love to see 2 things happen:
1) get rid of Calderon's contract - that is going to be a killer under the new CBA (just my opinion there and sorry to the Jose fans but he is just not worth $9.7M and $10.5M the next 2 seasons).
2) by All-Star break, Davis is playing more than Evans.
Actually for 1) one of Barbosa or Calderon has to go. A good rookie PG on a rookie contract would be alright with Calderon as Calderon would be there to ensure stability. Plus the average of a rookie contract and Calderon's contract might be more tolerable than Jose on his own.