Certainly Barr has all the physical measurements you look for from a pass rusher and he showed skill as a pass rusher at UCLA, but in the NFL he's been a solid run stopper, a solid blitzing off-ball LB, and pretty mediocre in coverage. Minnesota has two quality pass rushers, but even when they haven't had them it's not like Barr was the top backup at DE...Zimmer's no idiot, there's a reason Barr wasn't rushing the passer more frequently and why they're letting him walk. Taking a chance that Mike Smith can get him straightened out as a 34 OLB is fine, I'm not sure it's worth gambling at the >$10M salary he will command.