How did the Eagles, Cowboys, Giants improve so much in 2022?

It hasn't even been two years since the NFC East was the laughingstock of the NFL. During the final game of the 2020 regular season, a fading 4-10-1 Philadelphia team benched quarterback Jalen Hurts in the middle of a game in which he had a 25.4 passer rating against 6-9 Washington, which was guaranteed a playoff spot with a victory. His replacement, Nate Sudfeld, played poorly enough for neutrals to complain the Eagles were throwing a game on national television. An indignant 6-10 Giants team took to Twitter to complain; Sudfeld threw for 32 yards on 12 attempts and the Eagles bowed out, handing Washington the division title.

This was the bottom of the barrel. A sub-.500 Washington team…