Iman was drafted to be a PG/SG. We don't have a natural SG. We don't even have a natural backup PG.
Wilson can play some SG/PF but that is not his natural position, hes a SF.
Gallo is a SF.
Fields is a SF that plays SG because Amare and Wilson Chandler causes mismatches at the Center and PF, with Felton's ability to penetrate.
Center was clearly the position we needed, with Vucevic out of our hands.
Sure I don't know if we would have targeted Tyson Chandler, but you don't we wouldn't have either.
No one expected him to be available and to have him showing his value last year with Dallas winning...