His name is Defensive Coordinator Juan Castillo. If they get rid of this problem, they will likely win games. If they don't get rid of him, they will still probably win games and contend for the NFC East which is absolutely putrid this year.
If you can find a better, viable, realistic replacement for Juan Castillo, by all means, give him to me and an intelligent argument can be made to fire Juan Castillo in the middle of the season (something I hate doing).
Fire Andy Reid? They absolutely should NOT fire Reid. Not only has he done too much good for the club, but he is in charge of an offense so talented that they can turn the ball over five times (fault at a focus here) and still only lose by seven while having a chance to win at the end of the game. He has done wonders with Vick and has built teams through the draft. You don't be a consistent contender for a decade without that kind of stability. Now even great coaches run their courses with teams (see Jeff Fisher), but has that time come for Andy Reid yet? Talk to me after a couple years of not making the playoffs. Reid, despite some of his rather obvious flaws, is a good football coach and the best man to lead the Eagles at this very moment.
The Eagles have lost by 4, 13, 1, and 7. I can't help but think that even if the Eagles don't make changes, they will win games this year. The offense is explosive enough (my gosh they were a thing of beauty in the 2nd half against a good Buffalo team) and the defense is talented enough. And given the overall weakness of the division, yes, I still believe the Eagles have a realistic chance at winning the NFC East. If they can find a better defensive coordinator, then those chances might just increase significantly.