Should I start Pierre Garcon or Wes Welker in Week 5? (10pts)?

I was intending to start Jerricho Cotchery, but he is injured and might possibly be out. Thus, I'm left with a choice between Wes Welker (possibly still hurt and going up against a tough Denver defense) or Pierre Garcon (going against the terrible Tennessee defense). The problem is, I'm already starting Reggie Wayne for Indianapolis. Should I start both and ume Peyton will spread the ball around well? The guy I'm playing is starting Peyton though, so that might impact the decision. Please let me know what you think I should do! I'm really at a loss right now!