He drafts BPA, so there is no guarantee he’s gonna draft a LB, DE, etc with the 23rd pick. He may draft a wide receiver in the first round despite the fact that there is a log jam at WR.
Well, "need" does figure into things at some point, possibly even into a prospect's grade in some way.
I mean, it's not as if BB would draft an OT at #23 as the BPA on his board -- and then draft another at #31 because
he's now the BPA on the board -- and then a 3rd OT at #43 ...
Sure, that's a ridiculous example (but, hey, I'm a wild and ridiculous guy!), but the point is that the BPA thing can also be taken too literally.
I imagine that somewhere in the War Room there's another "big board" displaying all the players on the current roster - with each of them graded the same way as the prospective draftees, and organized by the various roles they fill in the schemes. So, if BB is on the clock and (hypothetically) looking at a WR who's got a higher grade than any of the other draft prospects (at any position), he's essentially comparing that WR prospect to the rostered WRs and their grades, and asking, "Is this WR prospect graded significantly higher than anyone on the roster?", and, "Might he cover a role (e.g., punt returner) that's currently
not covered by more than one player who's already on the roster?"
So, it may be that, at #23, there's a WR available who BB has graded higher than any of the currently rostered WRs, but who's not graded higher enough and/or doesn't cover any roles that aren't currently filled.
OTOH, at, say, #63, he has Dante Pettis as the BPA and has him graded equal to, or slightly higher than, a couple WRs on the roster and notes that Pettis also offers great potential to fill the punt-returner role. At that point, maybe he
does select "a WR" in spite of the apparent log jam.