Well I guess then you'd have to see how that .595 stacks up against the other coaches in the league under that same scenario. I don't want Fisher gone. I like him. I wouldn't give him 4-5 years though either. Give him two. I just don't think you can judge a coach on ideal conditions because ideal conditions don't exist in the NFL. It's a war of attrition and teams have to adapt.
My general opinion is he did one of the best coaching jobs in the league in 2012. Then in 2013 they would have probably been 9-7 had Bradford not got hurt @CAR. Fans wanted them to upgrade the backup QB situation in 2014 and they did that with Hill. But virtually no team is going to win more than 6-7 games starting backup QBs for 16 games. I loved the Foles acquisition in 2015- and that trade partly helped them be able to go get Goff in April. I just wouldn't have extended Foles two years before a single regular season game. That mistake hasn't hurt them in the grand scheme but it was a mistake none the less.
