I'm not taking credit for this just passing it along. Very interesting though.
When Mayock broke down Glenn right after the selection, he showed two clips from Senior Bowl practices. The first was supposedly Glenn getting smoked to the inside. Except it wasn't Glenn (#71), it was Jeff Allen from Illinois (#72). The next clip of textbook balance and anchoring was actually Glenn.
(Click on the first video link of Phil Hansen reading the selection - Mayock is right after that.)