this is as clear as i could get it, is this correct?
"In the 2012 League Year, players with three accrued seasons become restricted free agents when their contracts expire. Unrestricted free agents have completed four or more accrued seasons. An unrestricted free agent is free to sign with any club with no draft choice compensation owed to his old club."
and an accrued season is "Six or more regular-season games on a club's active/inactive, reserved/injured or reserve/physically unable to perform lists."
Questions and answers for 2012 free agency - NFL.com
if that information is true, i understand