At no point is a "vet WR" ever a good investment. Never. If Blackmon's available, no hesitation; if he's not available, get Wright at the bottom of the first.
Of course we're going to get OL help - one of those first 3 picks will be an OT/OG for the right side. If Steinbach is healthy (big if) then we have a great LG; if not, a gigantic contract comes off the books and our big FA signing should be a stud LG to replace him.
Oh, and to those of you who think we should get nothing but skill positions: That's the Dallas Cowboy strategy.. and they're not in the playoffs for two years in a row with All-Pros at QB, both starting WR's, and an all-Pro performance from their RB committee.