Some of what your saying is true. However, Nash is not much of a leader on the court defensively. Yes, I know he makes guys around him better OFFENSIVELY but as stated so many times Nash is a huge detriment to defense. This team can't build around Nash either. He is too old and too much of a liability on the defensive end. Nash has never had a reputation for being vocal and he isn't a leader on the defensive end.
I think Paul Coro's article today says it all:
http://www.azcentral.com/sports/suns/articles/2010/01/27/20100127suns-stoudemire.html
Nash often is brilliant offensively, although the burden of being the team's only playmaker is draining.In crunch time of Tuesday's loss to Charlotte, seven consecutive possessions ended in his hands, with more failure than success. He is committing more turnovers than ever and deep team-defense problems start at the top with him.
I have been saying this very same thing for the past 2 seasons. Nash's turnovers hurt this team as much as his assists help. He is basically canceling himself out in many games.
If you are going to trade away Amare and get very little back in return, it doesn't make your team a contender. So why keep Nash? To sell tickets? It can't be for that because I have been to 5 games recently and the arena is half empty.
As much as I agree with Amare not being much of a leader, I still say he is easier to build around then a aging PG who plays no defense.
Problem is Amare is not a max player IMO and will probably demand that kind of money which means he is gone. Just saying that Nash needs to go equally as bad and that will be especially true if Amare goes.