I think Tony will be asked to do more, if we go into the season with our roster as currently constructed. He'll have the defensive burden, he'll be asked to attack the basket, and he'll be our second unit's ignition key.
Leon will do some of the same things, but he only truly does a few select things - hustle, finish, and rebound. Anything else is cake. Eddie is, obviously, the shooter.
But all in all, I probably consider TA our sixth man, as once again, he'll be asked to do more on the court. He will probably lead the bench players in minutes, as well.