Prepping for the playoffs - WHIR

[BearsFan65]

12 team PPR league. The hook here is only 13 roster spots, so loading up is almost impossible, and the price of a handcuff is a dead spot if you choose to go there. My drafted roster (round taken):

QB - Schaub (7)
RB - Grant(3), Rice(4), McFadden(5), McCoy(11)
WR - AJ(1), Megatron(2), Avery(9), Morgan(10), Harvin(12)
TE - Gates(6)
D/ST - Vikings(8)
K - Gould(13)

Only two trades (every other change was a waiver acquisition):

1. Breaston and Celek (waiver pickup) for Sims-Walker in week 6 (S-W's owner had Witten on a bye, needed a TE, loves the Cards). Used the emptied roster spot to pick up Nicks.
2. Grant and Nicks for Vincent Jackson in week 9 (VJax's owner was already thin at RB, panicked a little when Slaton got benched). Used the emptied roster spot to pick up Hasselbeck.

Got a gift on the waiver wire in week 5 when Mendenhall fell to my 11th spot in the order after his 165-2 against SD.

Roster today (original picks in bold):

QB - Schaub, Hasselbeck
RB - Rice, Mendenhall, Wells
WR - AJ, VJax, Megatron, Sims-Walker
TE - Gates
D/ST - Vikings, Bengals
K - Akers

Have I done all I can here? Was the lack of depth at RB worth the price for VJax? I like what I have, curious for other opinions. Thanks!