Unless you have a pair of dominant defenses going, this is a short total in the NFL these days with the rules skewed toward offense. 
Denver's defense is overrated. The Broncos have yielded at least 23 points in five of their last seven games. Denver is down Bradley Chubb and ranks 22nd in run defense. 
The Titans should have scored far more than seven points against the Bills last week. They had a touchdown called back and missed four field goals. Tennessee mercifully has a new kicker this week. Derrick Henry should be able to run on Denver, which in turn will make Marcus Mariota far more effective off play-action. 
I'm not a fan of Joe Flacco. But Denver's offense has shown more the past two games averaging 22 points during this span.