One of the big question marks for this Boston Celtics team is their ball handling depth. They have Kyrie Irving set in stone for the starting unit, and then there is a lot of confusion about how Marcus Smart will be used.
The confusion comes from the fact that Smart is the most important defender on this team, and it is hard to imagine having that come off the bench, while also being the only other trusted ball handler on the team.
The Celtics always move the ball and run their offense as a unit, but they need someone that can be trusted to initiate the movement that will benefit everyone.