The Cleveland Cavaliers need to contest way more shots outside of the paint and at the rim. In Game 1 they gave up 37 contested shots. If you missed it, Game 2 wasn’t much better. Length down low could help. A player, LeBron namely, pressuring Green when he has the ball on the perimeter could help too.
I have no doubt the coaching staff has seen those glaring issues on game film. I choose to believe that all Cavalier parties have finally learned their respective lessons after Game 2 as well.