The times over the past few seasons where Bohannon has played off the ball and Iowa has tried to get him shots off screens and setting him up has not gone well. Bohannon doesn't have the size or quickness to get free from off-ball screens like a Jok. When Bohannon has been effective it's been with the ball in his hands, shooting pull ups off the dribble when teams don't pick him up in transition or when the ball is being rotated or kicked out after an offensive rebound.
He can/will definitely help this team, if he's not the focal point of the offense. The opponent has to guard him, he'll space the floor and shoot a good % when he's open. He also can pass. All of those things are good. But for this team to be good, they need other guys (Keeg Murray, Patrick McC, Rebraca, etc.) to get the space to shine and get shots.