You're fine for now.
Injuries will happen. Study up on back ups in RBs, WRs and QBs. There's always a few break out stars mid-season that can turn any team around. It's just getting to them first.
I wouldn't overreact. We've only been through 1 week. I see you don't have a backup QB and considering you have Newton and he didn't play that may be why your team underachieved.
you are not if you get a qb that plays
i think its to early to tell
My team:
QB- Newton
WR- Jeffery, Fitzgerald, Sanders, Wayne
RB- AP, Morris, Ridley
TE- Rudolph
DEF- Cards, Niners
After one week 11th place out of 12 teams, only one team scored less than me and my guys underachieved by a long shot.