Maybe the Detroit Lions decide they are better options at right tackle, or they don't want to entrust the right guard spot to a rookie.

One of the team's question marks this offseason remains an offensive line that's replacing three starters, and free agent options still are available at the two most unsettled positions.

Corey Hilliard and Jason Fox currently are slated to compete for the starting spot at right tackle, while rookie Larry Warford likely has the early inside track to start at right guard.

Guys such as tackle Eric Winston and guard Brandon Moore are available as free agents. In name, they would provide upgrades. But what about in production?

USA Today's Nate Davis says the Lions remain the best fit for Winston.

"Given his apparent price tag, Winston may be perfectly content to wait for a team to suffer a catastrophic injury or realize that it has a performance issue at right tackle. Chances are, he'll have some choices by early August if he's still unsigned," Davis writes.