The problem always is value in the draft. Drafting a lineman with the no 1 or 2 pick is a huge reach most of the time. Better to trade that pick for a lower 1st and another 2nd. I agree though. None of the QB's coming out is worth betting farm with a crappy line. I think our guards will be OK, but w/o good tackles, they can't show us what they can do yet. OL is a team game. We also need a legit run-stuffing NT and about 3 new linebackers. We probably also need a real SS, sad to say. Build this like you build a house, with a good foundation.
OTOH one doesn't get the 1st pick very often. If there is a huge playmaker out there (WR, DE, QB, LB). Go ahead. It just better be worth it.