I am in a 16 team .3 PPR salary capped keeper league. We start 2 RB's, so they are at a premium. I started the year with Ryan Grant as my contracted RB and drafted A. Foster. My backups (which I have been playing 1 of since week 2) are Buckhalter, Taylor, and Ivory. None of the teams in my league are stacked at RB, so no one is trading at this point in the season. On the Free Agency list are M. Morris, L. Betts, F. Taylor, and K. Williams. Should I play one of my backups this week and if so, which one, or should I pick up one of the free agents?