Garcia is one of the three best QBs available, your defensive players are some of the best but defensive players rarely produce points on a regular basis.
Shockey is a highly regarded rookie and might have the skills but often young TEs struggle in their first season, still, some think Shockey might prove otherwise.
Your WRs and RBs are solid but not great. Schroeder might be a better starter than Bates or Cardell. S. Moss is about the same concerning production. Maybe you can trade two of your RB/WRs for a top RB.
Try having a look at our top100 under "Cheat Sheets" for short comments on players.
I don't think you'll win your league but you won't finish last either, which isn't that bad for a fantasy rookie!