The Raiders are a case of "If it's not broke, don't fix it." JDR should have kept Bill Musgrave as his OC. Ironically BM is going to face his former team in his fist game as Denver's interim OC after Mike McCoy was fired.
Meanwhile every Broncos fan on the planet is probably mad at John Elway for hiring Vance Joseph, who he reportedly had a "man crush" on, instead of someone who has proven to be a natural leader of men everywhere he went.
Both conferences have teams that went forward and backward. Look at the Jets, who most people thought were going to pay for the #1 pick. Many people laughed at the player (Muhammed Wilkerson IIRC) who guaranteed six wins. Also, the NFC South is upside down with the Buccaneers being terrible when everyone thought they were on the verge of a return to the postseason.