I feel like Dom has been getting a bad rap here lately. Could his handle get better....yes! But I'm sure the staff worked with him and I highly doubt Lavin would say something like that in a interview, without being 100% confident in Dom's ability to handle the ball.
Lets not forget with the added depth, Dom is going to play his natural position as a 3. He won't have to shoot as much and will be able to do more slashing. And most importantly....be our best perimeter defender and lock down teams best scorer!