Bill Wippert/Associated Press
The secondary hasn't followed the linebackers' lead. Except for the last preseason game, the defensive backs had trouble holding onto easy interceptions probably because they were too busy holding wide receivers.
Darius Slay and Rashean Mathis never faced any legitimate threats to their starting positions. Slay started the offseason well, but he often looked a step too late on throws. Detroit is hoping that a little more experience will equal a big jump in production.
Veteran Cassius Vaughn seemed quite average, which is good enough to lock down the backup outside spot. Presumably, third-year cornerback Bill Bentley will come off the bench in nickel situations. He had a rough preseason, garnering five flags, and has to be a major reason the team is desperately looking for secondary help.
After Bentley, rookie Nevin Lawson will be the next man up for slot duty. He was flagged three times in the first three preseason games but displayed a willingness to get physical in the running game.
Ultimately, Chris Greenwood didn't do enough to earn a roster spot. That third quarterback played that much better, and Moore will be safe until the Lions find a sixth cornerback who can bolster the secondary. Greenwood will be joined on the cut list by Mohammed Seisay, who performed well enough to get a practice-squad nod.
The starting safeties didn't get too much work this preseason as the team knows what it has in James Ihedigbo and Glover Quin. Ihedigbo made the biggest impact with his interception against Oakland, while Quin had some trouble tackling, missing three in the first three games.
Isa Abdul-Quddus is the only backup who is likely safe. The other spot will come down to Don Carey and undrafted free agent Jerome Couplin. Carey did sign a three-year deal this offseason, but his recent hamstring injury coupled with Couplin's high upside and decent play gives the rookie the inside track.
Safe: Slay, Mathis, Bentley, Vaughn, Lawson, Ihedigbo, Quin, Abdul-Quddus and Couplin
Cut: Greenwood, Seisay, Carey and Nate Ness