In Vic Fangio’s first game against his old team, the Broncos lost in heartbreaking fashion, largely because of a terrible roughing-the-passer penalty on Bradley Chubb that helped put the Bears in field-goal range on their last drive. But there were more concerning factors that led to the Broncos’ loss, including a defense unable to force a turnover or record a sack for the second straight week, a 52 percent third-down conversion rate by opponents and perhaps their biggest enigma: left tackle Garett Bolles.



The third-year starter was called four times for holding penalties against the Bears, giving him five total (two accepted) through Week 2, the most of any player in the league. This issue is not new; over the last two seasons, Bolles amassed 14 accepted holding penalties, more than any offensive lineman in the NFL over that span.



With 16 accepted holding penalties in 34 career games, Bolles is running out of time to prove that he is not a complete bust...