Ha ha ha, ok whatever.  The last time I looked, Crawford was a poor shooting volume shooter.  He has shot better from the 3 this year, which is a product of being in the D'Antoni system IMO.   But I don't see this improving GS, and I don't see him as a better player than Al Harrington.    As for his defense, I can't remember a time where Crawfords defense scared anybody. 
As for Al Harrington wanting out, it was because he was sick of being used as a center in the Golden State lineup and getting his ass handed to him every night.  You can complain about his production if you want, but the facts are he was a SF being asked to play center.  He will go to the D'Antoni system and excel in the same role Boris Diaw played in Phoenix.