Im not going to argue in a circle with you.I don't really see how that follows. He needs to increase his FTr in any role, but you can increase his role regardless. And according to you he is playing the exact role so even if he did increase his FTr he cannot have any other responsibility.
Ace is an offball player. He should be developed as such. Of course he can do more off ball, but that's should be gradual and not forced. As he gets more comfortable in his sets he will grow to be able to do more things out of them.