Go down the list and if the first round goes the way everyone thinks (which is the key here) you're going to have a ton of edge guys, and a few DBs off the board along with maybe 4 QBs, a couple wideouts, a couple TEs, etc before we pick. And the group of OL who are possible from mid first into the early half of round two is deep with quite a few options.
So I could see BPA being OL there at 31. Very easily. But I have to think if that happens they will most likely get a defender in one of the remaining two selections. Probably both the round 3 picks tbh, barring a move up.