The point for the OKC trade is actually to help Fisher the coach. Like good coaching, it is imperative to have a vet on the bench to help the young players understand what it is they are doing incorrectly. Like when Kidd and Sheed were on the bench two seasons ago. Or Kidd the coach his first year with the Nets. Without Garnett or Pierce, it would have been a train wreck in Kidd's first year.
I am not saying OKC would do the trade; I am simply highlighting the TYPE of trades that may prove to be valuable for years to come.
Veteran's leadership is a vital tool for young coaches and young players.