Bill Barnwell of Grantland.com offers a tidy, thumbnail plan for the San Francisco 49ers in free agency.Below is Barnwell's plan and my thoughts on it:Estimated Cap Space: $10,021,111Likely Cuts: CB Carlos RogersWho They Should Keep: CB Tarell Brown, K Phil DawsonWho They Should Sign: CB Dominique Rodgers-Cromartie, CB Asante Samuel, S Louis DelmasDid you know the largest cap hit on the 2014 San Francisco 49ers belongs, of all people, to Carlos Rogers?