RB Dante Brown was an undrafted free agent out of Memphis who impressed with his speed around the outside in preseason games. A year's seasoning on the practice squad could allow Brown to improve other aspects of his game.
David Upchurch, also an undrafted free agent (from West Virginia), is a player who is familiar with the 3-4 defense, having played it in college at both the DE and NT positions.
Safety Russell Stuvaints is a converted LB who was signed as an undrafted free agent out of Youngstown State. If he can make the transition, Stuvaints has great size for the strong safety position and demonstrated his hitting ability in the preseason.