Trevor Penning
If he plays too high and has bad pad level at tackle I don't really see how that translates to him succeeding at guard. He's a tall dude. I just don't see that transition working out.
There are only three guards in the NFL listed over 6'6" (our boy Andrus Peat is one of them). Penning is 6'7"
https://hortonbarbell.com/average-height-and-weight-of-an-nfl-guard/