I agree to disagree with you.
I think that AB can shoot with a smaller 3 in his face. Given his height advantage over the likely defensive player he should have some great 12 - 15 footer looks and if coached could be a force in longer rebounds that JO and CB might out of position to grab.
I also think that the 10 minutes at 3 will get his blood rate up and into the game so when he transitions to 4-5 relief he should have his heart rate going and head in the game.
i.e. he wont be cold off the bench.
...but its conjcture and an opinion. Season will tell