I think the X factor is TT. Where is his best position before any other major moves can be made.
I see T2 as more of a PF - people get tied up in seeing that he's 6'8" which is small for a PF. Wingspan is more important than height and T2 more than makes up for his lack of height with his wingspan.
That being said, he should be able to defend 3's and 4's in the NBA....at a minimum. Noce, Deng, and T2 all have versatility to play multiple positions which Pax must like.