I think Ronnie Brown is also a good stash for the fantasy playoffs. Although I would argue for considering dropping Addai because my guess is by the time Addai is back, so would Donald Brown and I think that would limit Addai's fantasy value in a pass-first Colts offense.
I would not fault you for dropping Pierre Thomas though because there's speculation that Chris Ivory is the goal-line back moving forward and with Reggie Bush coming back, Pierre's touches will be even more limited.
14tm. PPR+IDP+return-yds. league
TE-Finley K & IDP-[streaming]