What else is there to potentially look for before training camp starts in late July? A few things pop up as possibilities between now and then.
The Suh situation: Whenever team president Tom Lewand has discussed Ndamukong Suh's contract situation, he has pointed to when the Lions signed Matthew Stafford to an extension a year ago. It took until the summer. Well, summer has begun so it would seem to fit when Detroit is hoping to extend its defensive star. If this doesn't happen over the next month or so, it is legitimately time for the Lions to wonder if an extension will happen at all.
A veteran signing: Yes, cornerback Brandon Flowers is on the market, as are a multitude of veteran wide receivers. These seem to be the two areas of need for the Lions at this point and general manager Martin Mayhew has shown in the past he is comfortable making veteran moves to improve his roster whenever necessary. Look at the Rashean Mathis signing from last year. So don't be surprised if there is a little bit of a roster shift between now and training camp. Another player to watch here could be defensive tackle Derek Landri, whom the team brought in earlier this spring.
Improvement of Larry Warford: Warford told me he is heading to work with his offensive line guru, LeCharles Bentley, for a portion of June and July. It was during this same time frame last year when Warford made the jump into being the player who started every game and played every snap for Detroit in his rookie season. In talking with Warford this spring, he's still not completely happy with his game, so he's headed to Bentley for a tune-up and some tweaks for his second season.
Accountability and the unexpected: Without fail, during every offseason around the NFL, something happens. Before the players left, new head coach Jim Caldwell preached accountability both on the field and off of it. This will be their longest time away from the team until next offseason, so whether his message stuck will be displayed here.
Cool traveling on Twitter and Instagram: This is the time of year where players often take some of their more exotic vacations. Reggie Bush -- it's for a sponsorship thing, it seems -- has been in Australia most of this week. DeAndre Levy is likely headed somewhere interesting as well and he already spent part of that offseason out of the country. Then there's Suh, who will be on television again in an episode of "American Muscle" on July 16 on the Discovery Channel. (It was already filmed with former Michigan strength coach Mike Barwis at Barwis' training facility in suburban Detroit.)