These are things a Carson-led offense can overcome.i think the difference is that Wentz is a top 2-3 QB in the league. if Brady gets hurt there is a big drop-off as well.
but that isn't really valuing Foles as a starter. he did fairly well today and looked capable. he has 3 weeks to really get some momentum going. Wentz is definitely huge key for this team, but the sky isn't falling yet. I'm just as concerned about our run defense and the defense giving up so many yards and points