Some believe that DeJean is a future 4-5x all-pro. If Beane views him as that I don't see how he could pass on him. Very likely is the BPA at this point as well.
However there are players that fit the bill at 4 positions there right now.
Newton at DT, DeJean at S/CB, McKinstrey at CB and Mitchell at WR.
They could maybe be OK with taking any of those 4 and maybe be willing to move down 3 picks and take whatever one is left or pick from those 4...
Beane has a ton of options right now in this spot.