If Johnson can do what he did in Miami, it wouldn't shock me if he started. 52% FG, 42% 3pt%, 13 pts/game. Let him start, play 25 mins a night. Have Hood command the bench unit and play 30 mins a night.
Johnson could come in and spread the floor and open it up. You'd have Hill, Johnson, Hayward, Favors, Gobert. Johnson would give Favors and Gobert a lot more room in the paint.