During a Week 9 blowout loss at Baltimore, Broncos defensive end Zach Allen noticed he was getting double-teamed more frequently. Such is life when you’re as productive as Allen’s been through the first three months of the NFL season. One differentiator between Allen’s first season in Denver and this one: He’s got a teammate on the defensive line capable of making offenses pay when they dedicate extra resources to him. It’s not a coincidence, then, that John Franklin-Myers has two sacks in Denver’s past three games and has made more splash plays the more attention Allen’s commanded. “If you’re rushing four and the center turns to Zach and he’s getting double-teamed, ‘JFM’ has had success,” defensive coordinator Vance Joseph said Thursday.