Two schools of thought on this:
1) Buddy (along with Spangler and perhaps Woodard) will be the center of the offense. He puts up, say, 14.5 PPG / 3.5 RPG / 4AST and a couple of steals per game. His shooting from outside improves and he rounds into a complete two-way player. I think we all hope this is how it goes.
2) Without Osby or any other proven inside threat to account for, teams game-plan for Buddy. He has to get rid of the ball more and/or take more low percentage shots, which undermines his efficiency. That version is like 10 PPG / 2.5 RPG / 5.5 AST / let's stick with 2 steals. In this scenario I'll presume the opposing game plan dares him to shoot the 3; whether he's ready to do that could make or break a large part of our season