I tend to agree with Chum--there were many moves by the Mavs--all apparently very sound ones at that--but both the Heat and the Spurs have tweaked their lineups after either losing in the playoffs (Heat) or winning a championship (Spurs in 2000 following NBA Title in 1999).
You have to suffer with Harris--only way he develops is with minutes, mistakes and coaching. Tony Parker was the same way--in fact he still is. Some nights he is great. Other nights he can't do anything right.
I expect that AJ will give him time to grow.
Is the FO shopping Stack? I know a lot of fans may favor this, but I haven't seen any evidence of this.
The Mavs have gotten tougher in the off-season--which is scary in itself.
(Chum--yes--I am still around