Man....you got a damn good team for a 14 team league. Mopete's really just getting you some points and 3s. Diaw is just going to be some boards and assists.
Diaw would give you some insurance in case one of your PFs or Cs go down. If you can stand losing the 3s, then i would consider it just for the insurance factor. You're already set in assists i would assume so insurance would really be the only reason why i would see picking up Diaw.
yeah i had a killer draft. mo williams, kmart2, and deron williams all in late(ish) rounds. also traded dirk for marion and wilcox for felton. and i picked up jr smith off waivers from a guy who had both jr and melo and couldn't handle the suspensions.
i kill in threes, so i think dropping mo pete for diaw is a good idea