I'm convinced we are going to maneuver for Oliver
From https://theathletic.com/940291/2019/04/23/from-dream-picks-to-trade-down-targets-the-bills-most-likely-options-at-no-9-in-the-draft/
He was miscast as a nose tackle in Houston’s defensive scheme but is at his best when penetrating into the backfield. Both Brandon Beane and Sean McDermott attended Oliver’s pro day workout at Houston. It was one of just two pro days McDermott attended this year. If Oliver is available at No. 9, he will be tough to pass up. Brugler rates him as the No. 5 prospect in this draft and describes Oliver as an “ideal one-gap penetrator due to his athleticism, instincts and relentless nature, projecting best when he is lined up closest to the football.”
McD at the Owners Meeting:
"Yeah that's big. That's really big. To be able to get pressure from the inside... you know, people would argue that there's ways to take away the edge rusher more than there is ways to take away the inside, the interior rusher, and I would probably agree. The ability to pressure an effective quarterback from the inside out is critical when you want to play good football on defense. So, you've got to make sure that you've got enough of those guys."
Write up of the McD & Johnson Defense
In McDermott’s system — like most 4-3 alignments — the defensive line is unleashed on the opponent’s backfield (and quarterback) in a relentless one-gap onslaught. There’s little to no two-gapping for defensive linemen.
McDermott’s (and originally Johnson’s) idea is that quick penetration into the opponent’s backfield from any one of the defensive linemen is the fastest and most efficient way to disrupt the offense. This scheme doesn’t “protect” linebackers against pulling guards. It’s designed to stop run plays before the pulling guard’s block can have an effect at the second level.