You guys gotta realize, stable mediocrity, is all you really need to be a playoff team in the NFC East. Kirk Cousins can give the Redskins that, it's easier to surround an ok QB with great weapons than vice-versa. The Washington just needs to stabilize at O-Line and get some younger pieces on defense and they can be competitive in a division with these teams in a nutshell.
Giants: Eli is wasting away the last of his good years of his career in NY. They have a talented passing attack with a running back corps made up of UDFAs and practice squad players who still couldn't combine for 1000 yards rushing or better than 3 yards a carry. Their defense is in shambles with maybe 1 or 2 legit talented players at best and a guy who would be on permanent disability if he didn't play football. Their coach is an ineffectual game manager who should have retired 2 years ago.
Eagles: Led by an egomaniac, who is trying to essentially run a college system in the NFL. People called him an offensive genius, but it seems he has successfully alienated almost all the players who could even thrive in his system. DeMarco Murray is a bad fit for their system. I mean Jordan Mathews is quite talented but he basically reset the offense for no real reason. Defensively they are Jekyll and Hyde but more Hyde, they took risks on some guys who have turned out to be mediocre.
Cowboys: Without Demarco Murray their running game is so-so. Their O-Line has regressed some, and Tony Romo is likely going to retire in a year or two, his body is falling apart. They have no answer at QB moving forward (Johnny Football?) Defensively they have some talent but it has to mature.
Washington could easily get a 3-4th rounder for RG3 and don't have to dump crazy money to Kirk Cousins, they can restructure and free up money to take a stab at free agency. I still think Jay Gruden is an idiot, but he may bumble his team into a playoff spot.