NFL Nation's Michael Rothstein examines the three biggest issues facing the Detroit Lions heading into training camp:
Offensive knowledge: The Lions looked better over the final two weeks of spring workouts than they did during the first few weeks, when the offense and quarterback Matthew Stafford looked completely out of rhythm. However, there is still a lot of learning and adjusting to go, including the re-entry of receiver Golden Tate and running back Joique Bell into the offense after they sat out part (Tate) or all (Bell) of the spring with injury. By the time training camp begins, the terminology for the new Detroit offense should be down. It'll be the implementation and the repetition of it that likely will still need some work, this time against a defense that eventually will be allowed to bump, press and blitz. The key here, as it always is lately when it comes to Detroit, will be Stafford and his comfort level with the new offense. Most of the players remain the same for him -- but making sure the routes and terminology are correct is going to be one of the most important things for the Lions as they prepare for the season.
What's up at corner: Chris Houston is gone. Darius Slay, barring injury, will almost certainly be a starter in his second year with the Lions. So, too, will Rashean Mathis, who spent almost all of the spring as the cornerback opposite Slay. The question is who ends up behind them. While looking at backups might seem an odd issue for camp, the Lions have been struggling at corner for years now, and having depth there is going to be a key. Bill Bentley will likely end up in the slot -- although expect him to be pushed at least a little by safety Don Carey and rookie Nevin Lawson. The outside cornerback roles, though, will be interesting to see. Cassius Vaughn had a good spring, and the veteran could end up earning a roster spot with a strong summer. Jonte Green and Chris Greenwood both enter their third seasons with the club and could be fighting for one roster spot between the two of them, especially if the Lions choose to keep Vaughn. This is also an area for which Detroit could end up trying to find a veteran upgrade through the free-agent wire, much like the team did with Mathis a season ago. A signing during camp, he turned into the leader of the Lions' cornerbacks and the team's top performer at the position by midseason.
The kicker: For almost two decades, this was not a problem position for the Lions. Jason Hanson showed up to camp. Jason Hanson kicked the ball. Jason Hanson won the job. Simple. Done. Last season, the Lions went with veteran David Akers, a situation that didn't work out. Now, the Lions are hunting for a player they hope will have the same consistency and longevity of Hanson, who retired after the 2012 season. Nate Freese, on whom the team spent a seventh-round pick, and Giorgio Tavecchio, a former Cal kicker who has bounced around training camps the past two years, are the candidates. Tavecchio has the stronger leg. Freese is likely the more accurate kicker and, due to having a draft pick invested, would appear to be the favorite. However, Detroit understands the importance of having a strong kicker. Justin Tucker made six field goals against the Lions last season to help crush their playoff hopes. That was just the latest example of a strong kicker hurting the Lions. So figuring out which player gives the team the best shot will be an underrated -- but vital -- portion of camp.