Mike Vrabel and his staff have done a remarkable job for the Tennessee Titans.
The Titans offense that was built around Derrick Henry, and Tennessee hasn't lost since losing Henry. Tennessee's big splash addition was Julio Jones, who has been mostly a non-factor due to injuries and finds himself on IR. The Titans defense was viewed as a problem for the season but it has played much better than expected. There are reasons the Titans are 8-2 and arguably the hottest team in football after six straight wins.
And there are also reasons to wonder if any of this is sustainable.