You make good an excellent point with Bass and it would be great to have a bench PF who can score mid range shots and get to the basket off pick n roll. My biggest concern is that there are hardly any centers as free agents next season so if the inevitable Duncan retires that leaves us with Tiago, Baynes and Ayres? lol.. That would be cataclysmic. Biyambo is young at 23 and could be taught to shoot a jumper, he physically has the tools to play the 4/5.
Bargnani as funny as it seems is interesting because he's played on some horrible teams and was asked to be something he is not before they realized he was a role player. He's athletic enough to stretch the floor and isn't a terrible passer and would probably be cheap.