Given the efficiency of Baynes as a rim protector and team defense, I think we could need Deng more than Bogut now.
This said, I would wait for the buyout season. Although mostly rookies, we have many 3.5 players in his role. Brown, Tatum, Ojeleye, Yabusele are not going to hit the rookie wall simultaneously.
The team is playing so good as a choral entity that I wouldn't risk getting anyone different into the rotation or locker room right now.