I think Ty can be very valuable for next year's team. I think he can take his guy one-on-one, and score that pivot layup or baby hook. He'd be more effective if he could develop the center-lane turnaround shot or fade away from the low-post block.
When BU gets a PG, obviously, there will be less pressure on Ty on handling the ball, so he can focus on rebounds, hustle plays, defending, screens and rolling to the basket for a layup. However, if a team presses, we know Ty can handle the ball effectively, as proven this year.
If he's not starting, then to me, BU and staff have assembled a Top 15 team. In the end, whether he's starting or not, if he can contribute like I mentioned above, I'd be happy with that. He does still need to finish around the rim better.
This is assuming he'll not develop an effective three-point shot. Just imagine, though, when he's left alone beyond that arc, he can average 2-3 three-pointers' a game--a tall task, indeed.