You said that you are worried Manning will end up like Brett Favre. I'm saying that going 24-12 over 2 years with a hurt shoulder that requires surgery one season, and then barely losing to the Super Bowl Champs in the NFC title games isn't a fail. Oh, let's not forget that was with 2 different teams, with no training camp either time. Peyton can only be so lucky to lucky to have a final 4 years like Favre's. 2 NFC title games. Set passing records. Etc.
Do they? We all know that he would be best suited for the Packers or Jets, they would put him at the position he is most suited. Career backup.