Had Belton played in a full-time guard role, I think he would be thought of similarly to Alabama’s Tyler Booker, another strong and punishing blocker who isn’t athletic enough to stick on an island at tackle. It’s quite possible that teams considering Belton a guard, not a tackle, led to the late surge of interest in him as a prospect, as more coaches got involved in the process.
The Packers try almost all of their rookie offensive linemen as tackles until they can’t prove they can play the position, but I believe that Belton’s best position at the next level will be on the interior, where his quickness and strength will be highlighted more than his kick-slide and footwork. At guard, he certainly looks the part of the Day 2 selection that he’s currently being projected as per the consensus draft board.