There were a lot of reasons the Denver Broncos could have and maybe should have simply held onto offensive coordinator Rich Scangarello in 2020.
The offense was bad in 2019, but so was the personnel. Joe Flacco was a horrid fit despite being pitched as 'in his prime' and injuries up front on the offensive line made matters way worse.
The Broncos traded one of their top playmakers midway through the season (Emmanuel Sanders) and didn't have anyone healthy to adequately replace him.
The team cycled through three quarterbacks before landing on Drew Lock, and when Lock was inserted into the lineup, the offense seemed to do a whole lot better, at least in terms of converting third downs and putting the ball in the end zone, doing what matters most -- scoring points.