Bills head coach Sean McDermott and the offensive staff quickly recognized the chemistry in Buffalo's quarterback room over the second half of the season after Matt Barkley arrived following the injury to Anderson in Week 9.

The experience of Anderson and Barkley served to shorten Josh Allen's learning curve, as the rookie quarterback made noticeable advancements with his game when he returned to the lineup in Week 12.

"There's a lot of good conversation in that room," said Daboll in reference to his quarterbacks. "There are different levels of experience. Matt was the number one recruit in the country, and then he went to a big-time school. D.A.'s been in the league for 14-plus years and played in a variety of teams, a variety of offenses. Both of those guys have a very good understanding of defense, have a good understanding of system. We have really good conversations, whether it's about protections, maybe some route schemes.

"And then Josh, for a young player, is smart. He talks with those guys. There's a lot of good communication. There are no egos. Everybody's pulling in the same direction. If someone has something to offer or we can do something better, we all work together."

It's likely that having the same quarterback room for 2019 is something that Josh Allen wanted too, knowing how much he felt his game benefited by having Anderson and Barkley by his side to school him up on the NFL game with each passing week this season.