What I don't see, as of yet that is, an improvement of explosion from Polley, particularly following summer with Sal. Though he's 6'9" he lacks power in his gait and in his jump, without these things along with a lack of instinct for the ball make it difficult to rebound.
He has to overcome his deficiencies here or his minutes have to go those who can help us in this area.
He's the opposite of Christian. Christian freshmen year jumped to the basket for rebounds but frequently left his player wide open for kick out threes. Tremendous improvement from freshmen year to now in his timing.
Tyler glues himself to his player at the expense of going for rebounds. Given that he frequently is guarding opposing players who are perimeter oriented plus this preference to stay with his player his rebounding numbers will be poor.
Let's see if the dog personality develops in Tyler and he develops the confidence to not make mistakes. I don't believe it's a lack of physical capability or fear to mix it up that's holding him back.