That is what's puzzling. Why not start Marco? Or play Dom a few minutes at the 2. But coach knows the message he is trying to send, whatever that may be.
I love Garrett's hustle and he has a nose for the boards, but beyond that he has improved far, far less than everyone else who came back. And he still handles the ball like a grenade at times. Maybe playing baseball during the summer has stunted his development. He was more polished offensively than Dom last year, and right now it is not even close.