At 0-3 the Broncos are in desperation mode. The Jaguars are sure to get the Broncos' top effort. 
Denver is especially tough at home early in the season when opponents aren't in shape to deal with high altitude. The Broncos are 13-1 during their last 14 September home games. 
The Broncos' defense is better than it has showed. I'm not buying any Minshew Mania. Gardner Minshew is far more game manager than gunslinger. He needs to heavily lean on Leonard Fournette, who is having a disappointing season so far. 
Forget, too, about Jacksonville returning to its playoff ways of two seasons ago. The Jaguars are more like last season's 5-11 team. Their offense lacks a downfield attack, Fournette may be in the wrong system and the defense isn't as dominant as last year missing some key players, including linebacker Telvin Smith.
It's not a fluke the Jaguars have dropped 12 of their past 15 games while going 4-9-2 ATS during this span. They just aren't very good.