Due to the way the season ended, with a weird quarterback run that killed the rest of the clock in a playoff loss to the San Francisco 49ers, it might be forgotten how good the Dallas Cowboys were last season.
Dallas was excellent. They had a high-flying offense. Second-year cornerback Trevon Diggs and rookie phenom Micah Parsons transformed the defense. That's what made the playoff failure so tough to accept. It's a team that could have won a Super Bowl, but didn't even get out of the wild-card round.
The Cowboys were the class of the NFC East, but that doesn't mean they're guaranteed to repeat.