The Ravens have a little bit of a problem on their offensive line.
Eugene Monroe hasn't lived up to his billing, as the offensive tackle is hardly able to complete a game. Comments from the organization suggest that the team could seek to part ways with Monroe after 2016. There has been speculation about the Ravens finding a tackle in free agency or the draft, but Coach John Harbaugh suggests there is a possibility they could get someone from within to fill the spot.
That someone would be right tackle Rick Wagner, who could definitely compete for the left tackle spot. Wagner was one of the best tackles in football in 2014 and he started to return to form in late 2015 after struggling early when he was returning from injuries.
Moving Wagner to left tackle would likely move Marshal Yanda to right tackle and it would mean that Ryan Jensen or John Urschel would fill in at right guard. It would also hurt the Ravens' chances of retaining Wagner after 2016, as his asking price would go way up if he was to succeed at left tackle. In this hypothetical situation, it would be reasonable for the Ravens to draft a tackle in the middle rounds to develop for the future.
Eugene Monroe has been a disappointment and James Hurst is simply not an NFL caliber player. A replacement is needed, whether he comes from within the organization or outside.