Very solid top to bottom. Your starting lineup has 4 long armed active defender which is very useful. Spacing could be off slightly with Gerald Wallace, Noah and Rondo playing at the same time. In this kind of draft there is a lot of nitpicking. I would say relatively offense will be your problem compared to other teams.
Elite defensive team. May be a bit offensively limited compared to the other teams (starters). IMO You might want to start VC at the 3.
I honestly don't mind Carter playing a Jason Terry type role. It's what I'm doing with Melo. You probably want Carter finishing since he is by far your best 1 vs 1 player. You can bring Conley and Gerald Wallace off the bench and completely hound other teams (Conley is IMO top 2-3 PG defender in the league right now). With your current lineup you coudl try Rajon Rondo Ray Allen Vince Carter Gerald Wallace Joakim Noah/Rasheed Wallace Depending on the matchup as well.
The 2 is generally the weakest position. You could try flipping one of them to upgrade a position. I do have Melo on my bench but a straight up trade between us doesn't make much sense since my 2 guard is set in Roy.
That's fair. With your frontcourt, you don't really need a perimeter stopper to start as well so starting Vince at the 3 is fine.
Nash, Horford, Johnson, Prince for Kidd, Terry, Millsap, Pierce. You upgrade 3 positions, I get Pierce.