What's next for Chargers? Why Khalil Mack should be traded, plus what to do about Jim Harbaugh, Mike McDaniel

Five teams entered Week 5 with an 0-4 record, no two more surprising than the Texans and the Chargers . Both playoff staples of the past few years, they were trying to take the first step in joining the 1992 Chargers as the only teams to start 0-4 and make the postseason. One succeeded. The Texans thumped the inept Titans 26-3. The other failed. The Chargers fell 23-17 to the Broncos in an eyesore of a game. Neither Bo Nix nor Justin Herbert reached 125 yards passing.