I think theres 2 issues here that people are blurring - one is are any of our QB's good enough to start for another team in the league, the other one is whether or not, based on the numbers and reputations they have, they'd be given the chance to. I would say the answer to the first is yes, whilst the second probably not. Whilst I can't see at this stage any GM's wanting to put their faith in Edwards or Fitzpatrick, if circumstances had placed them in teams like Arizona, Jacksonville, I can't see them doing any worse than the starters there.
Lets wait and see what Edwards can produce in an actual functioning offense this year, and then compare him to other QB's.