The Rams' decisions at safety

As the St. Louis Rams transition from 2012 to 2013, there is continuity in a number of areas, but one of the position groups in transition is safety. Gone are last year's starters Craig Dahl (who signed with the 49ers) and Quintin Mikell (who remains a man without a team), while they added to their ranks with third-round pick T.J. McDonald. So how is this competition shaping up?