The Best Low Key NFL Free Agent Signings

To build a successful NFL franchise, teams have to make a big splash in free agency, every now and then, but it's those signing that aren't really the attention grabbers that can make a team really special.

Former Chargers running back Darren Sproles (above) will be playing for the Saints in 2011.

Chris Corbellini, of Fox Sports, lists some quiet signings that may ring loud this season.