Zacc is the type of player that makes your team on the floor drastically more BBIQ. He is the type of "moving without the ball, spacing, shooting" type of player that we wanted all along in Dre.
I think he will bring just that... Spacing, BBIQ, drives, catch and shoot 3's, PNR, secondary ball handling (needs work), and defensive versatility.
If this is what the Hawks need, he will provide it. He isn't a primary scorer unless it's a dire situation.