Glover Quin: A versatile, durable safety

The Detroit Lions sandwiched Wednesday's marquee free-agent signing -- running back Reggie Bush -- with two defensive players whose names only the most hard-core NFL fans would recognize. We've already discussed the addition of defensive lineman Jason Jones, whom coach Jim Schwartz would focus mostly at defensive end, so now let's introduce ourselves to safety Glover Quin.

Quin agreed to terms Wednesday shortly after Jones and Bush. He doesn't fit the full profile that general manager Martin Mayhew outlined in January for his defensive additions, having intercepted five passes and forcing three fumbles in four years as a starter for the Houston Texans. But he has experience playing cornerback and both safety positions, and in a notable departure from his predecessors, Quin has missed only one game in his NFL career.

Louis Delmas, who is attracting interest from the St. Louis Rams and might not return, missed 13 games over the past two years.

In all, the Lions signed four important players Wednesday when you include the return of cornerback Chris Houston on a five-year deal. They created cap room for at least a portion of this haul by restructuring the contract of defensive tackle Ndamukong Suh, and they could conceivably create more if they sign quarterback Matthew Stafford to a contract extension.

Teams don't make the playoffs in March, and the league doesn't hand out awards for the most active teams in free agency. All teams would prefer to rely on drafted players, but that goal is realistic only for a few. The Lions had too many roster holes, and too small of a window, to avoid a deep dive into free agency.

Put it this way: They have a better chance to make the playoffs now than they did two days ago. That's the most you can ask on March 13.