The Detroit Lions have Graham Glasgow and Tate Ratledge competing for the starting center job vacated by the retirement of Frank Ragnow. On Tuesday, head coach Dan Campbell strongly hinted he may have made a decision already.

Detroit Lions training camp has now progressed to the point where fan will be in the stands. The season ticket holders and VIPs are waiting to catch Saturday's practice, the first one open to anyone outside the immediate Lions den of media or family members.

Campbell also emphasized there's room for improvement for the Lions’ No. 1-ranked offense (33.2 points/game) from last season. Although the then-Ben Johnson-led unit had no problem scoring points, Campbell would like the now John Morton-guided offense to get better converting on third-and-short this upcoming season.