IMO Cards will with go WR or OL with the 4th round pick.
Yeah, not a lot of good ones left. Here are some: Dru Samia OG Oklahoma, Michael Jordan OG Ohio State, Ben Powers OG Oklahoma, Mitch Hyatt OT Clemson, and Dave Edwards OT Wisconsin. But your are right better players at other positions.What OL would you take? Late run at the end of round 3 killed us.
I would still go for BPA...highest rated players. Its truly a crapshoot at this point and beyond, so take the most talented guys.