If the Buffalo Bills decide to part ways with offensive coordinator Rick Dennison, they won't be lacking for candidates to fill the spot.
One clear NFL trend that has emerged in the firing-hiring season is teams letting go of their OCs even while retaining the head coach and the majority of the other assistants.
The Bills could very well be the next club to make such a move. Coach Sean McDermott created speculation that Dennison's future with the Bills is in doubt when, during Tuesday's season-ending news conference, he failed to answer a question about whether Dennison would return as offensive coordinator for next season.
The most recent NFL team to send its offensive coordinator packing was the Seattle Seahawks, who fired Darrell Bevell late Tuesday. Earlier in the day, the Carolina Panthers dismissed Mike Shula.
After Doug Marrone resigned as head coach following the 2014 season, the Bills interviewed Bevell, among others, for the job that eventually went to Rex Ryan.
Shula worked with McDermott, who spent the previous six seasons as the Panthers' defensive coordinator, and with Bills General Manager Brandon Beane, who had been a front-office executive with the Panthers.
Mike McCoy, who also is on the list of available offensive coordinators, was fired from that job by the Denver Broncos on Nov. 20. The former head coach of the then-San Diego Chargers had been considered the Bills' first choice before he decided to go to Denver instead.
One quality that could tilt in McCoy's favor as much now as it did last year is that his agent is Bob LaMonte, who also represents McDermott.
Brad Childress, considered the second choice of Bills coach Sean McDermott before Childress chose to remain with Kansas City as assistant head coach, announced his retirement after the Chiefs' playoff loss to the Tennessee Titans last Saturday night. He, too, is represented by LaMonte, but Childress is expected to stay retired.
Rob Chudzinski remains under contract as offensive coordinator with the Indianapolis Colts, but whether he remains with the team will be at the discretion of whoever is hired to replace recently fired head coach Chuck Pagano. If Chudzinski becomes available, it's expected the Bills would be interested.
Another potential candidate is Ben McAdoo, fired as head coach of the New York Giants on Dec. 4. McAdoo, who is also represented by LaMonte, had been the Giants' OC in 2014 and '15 before being promoted to head coach in 2016.
The Bills' offense struggled mightily during 2017. The team not only had problems moving the ball, but it also had issues scoring. Quarterback Tyrod Taylor, who is not expected to return to the team, also showed regression.
The team's play-calling was heavily second-guessed throughout the year. Even McDermott expressed displeasure over a decision not to run on first-and-goal from the Jacksonville Jaguars' 1 in last Sunday's 10-3 wild-card playoff loss.