Tillman came from the top of the key. He didn't move until the shot was in the air. If AG had not gone down to cut off Winston's shot from the other side of the basket, everyone would have been crying about why there was no weak side help defense on Winston (who was the biggest threat). Using your logic, Kofi probably shouldn't have left Tillman. See it however you want to.Since Kofi and Feliz both went with Winston, weak side help (griffin) was responsible for Tillman if he peeled off to basket, which he did. Griffin's, man wasn't around basket. Griffin, left his weak side protection which led to easy put back.