Kellen Moore's roster spot looks secure

Like the rest of the NFL, the Detroit Lions must cut their roster down to 53 players by the end of Saturday. Many of the decisions are inter-related, and I'm pretty confident of one verdict that will impact others.

Unless the Lions' thinking or options change dramatically, No. 3 quarterback Kellen Moore has a spot on the 53-man roster. Moore earned that spot with a much-improved preseason in which he threw four touchdown passes and posted a 99.4 passer rating, and it's possible he could assume the No. 2 role in 2014 if Shaun Hill moves on.

Of course, the decision to keep a third quarterback closes the opportunity to keep an extra player at another position. That domino won't fall, but I think the Lions are making the right call. They've already put a year into developing Moore and have seen marked results. In the long term, developing a No. 3 quarterback is more important than having an extra linebacker or a sixth wide receiver.

Note: According to Dave Birkett of the Detroit Free Press and Chris McCoksy of the Detroit News, the Lions have begun informing players that they will be released. Tim Twentyman of the Lions' website confirmed that one of them is cornerback Chris Greenwood, who was a fifth-round draft pick in 2012 and has been held back by injuries. He is eligible for the practice squad.