The Bills don't have any critical needs, either. If any team should be taking BPA over immediate needs, it's this one.
I think CB and DE are important too, but if Beane is targeting Etienne, Harris or Williams, I have to think it means he's confident in finding first round talent for those positions later in the draft. The opt outs have caused a lot of chaos, and there are guys who were mocked in the first round like 10 months ago being mocked in the 3rd, 4th and 5th now.