Not a week specific question, but a roster question.
In my dynasty league, I've been aiming for youth over the last two years, trading away TO (just before last year started,

), Corey Dillon, and Tiki Barber (who I picked up in one of those previous trades). The goal being to solidify youthful core now, so that I can more freely use future rookie draft picks to trade for players that might help me "win now."
Anyway, looking for comments on my roster -- what position is weakest (either in short-term production or long-term upside), what players should I try to ditch for value now, what players should I consider "off-limits?"
In a 12 team dynasty league, where rosters can reach as high as 27 players, how do you think I should fare over the next few years?
REGULAR ROSTER
QB Jake Delhomme, CAR
QB Jake Plummer, DEN
QB Chad Pennington, NYJ
RB Brian Westbrook, PHI
RB Carnell Williams, TB
RB Frank Gore, SF
RB Julius Jones, DAL
RB Michael Turner, SD
** RB Domanick Davis, HOU (on IR)
WR Larry Fitzgerald, ARI
WR Darrell Jackson, SEA
WR Joe Horn, NO
WR Drew Bennett, TEN
WR Marques Colston, NO
TE Todd Heap, BAL
TE Jermaine Wiggins, MIN
K Matt Stover, BAL
K Lawrence Tynes, KC
RESERVE ROSTER
QB Aaron Rodgers, GB
QB Sage Rosenfels, HOU
QB Josh McCown, DET
RB Josh Scobey, SEA
WR Derek Hagan, MIA
WR Devery Henderson, NO
WR Brandon Williams, SF
* Note: Players can only be put on the reserve roster by being drafted in the rookie draft. Reserves can't be started unless they're moved up to the regular roster, which means someone would have to be cut.