D would be an issue...unless he's on Finley, who he seems to guard well.
I dunno--say the James rumors are true; we add James & Peja, in place of Terry, Stackhouse & Daniels; James is a defensive upgrade over Terry (without a big offensive dropoff), Josh is a defensive upgrade at the 2 over Stackhouse (lot of minutes there this year) or Terry (who would presumably see some minutes at the 2 as well); so we upgrade two positions defensively and downgrade 1. Assuming both Dirk and Diop continue to improve their D, I don't think we're that bad off.