Thanks to the top three offensive tackles in this year's draft going in the top four picks of the first round, the Detroit Lions went with a defensive end at No. 5. They did draft offensive guard Larry Warford in the third round, but that was the only pick they used on an offensive lineman.
What this all means is that Riley Reiff is going to stay at offensive tackle for the Lions. Specifically, he is expected to be the Lions' starting left tackle. Rob Sims and Dominic Raiola will likely continue to start at left guard and center, and Warford will be expected to take over the starting right guard job. This leaves Jason Fox and Corey Hilliard to battle it out for the starting job at right tackle.
Although the Lions have potential starters ready to compete at each position, their overall depth isn't great, especially at tackle. Because of this, the Lions are going to look at signing a veteran offensive lineman in the coming weeks, according to general manager Martin Mayhew.
On if they filled all the holes that they wanted to going into the Draft: "I think after every Draft you kind of review where you are and typically there are some things that you still, at least in our case, there are some things that we still want to do this offseason and we're going to be focusing on those things over the next few weeks."
On if there is a particular position he feels they need to address: "No. Just the offensive line pretty much in general. We're really young there so we'll look at some veteran guys there I think over the next few weeks."
If the Lions had more cap room, I'd imagine they would have already given guys like Eric Winston and Bryant McKinnie a call (or the Kansas City Chiefs to trade for Branden Albert). Those are guys who will be expected to start wherever they end up, though. The Lions seem more interested in a cheap veteran who has starting experience but would be okay with being a backup.
The Lions appear to be comfortable with a potential starting O-line of Reiff-Sims-Raiola-Warford-Fox/Hilliard, so I don't think they're actively looking to upgrade their starters at the moment. If Reiff and Fox/Hilliard were to go down, though, the Lions would be in trouble, so adding a veteran to back them up makes sense.