This is the fourth in a series looking at positional needs for the Detroit Lions in free agency. Teams can begin negotiating with free agents on March 12. The signing period opens March 14 at 4 p.m.
Allen Park — During his two years on the job, Detroit Lions general manager Bob Quinn has poured more attention and resources into his offensive line than any other position group. Unfortunately, he has yet to see a return on that investment.
Last season’s starting lineup, which looked great on paper, was ultimately derailed by injuries.