Much has changed since the Buffalo Bills defeated the New England Patriots last Sunday.

On Dec. 29, starting quarterback Kyle Orton informed the Bills that he would retire. And on New Year’s Eve, head coach Doug Marrone informed the organization that he would opt out of his contract, leaving the 9-7 Bills on a coaching search to start 2015 after finishing with a winning record for the first time since 2004.

One of the names that has since surfaced in that search is Patriots offensive coordinator Josh McDaniels.

According to Adam Schefter of ESPN, Buffalo has requested interviews with four NFL coordinators, including the Seattle Seahawks’ Darrell Bevell and Dan Quinn, as well as the Denver Broncos’ Adam Gase the Patriots’ McDaniels.

The 38-year-old McDaniels agreed to interview with the Atlanta Falcons in New England on Friday, and will be interviewing with the San Francisco 49ers on Saturday, as Albert Breer of NFL Media first reported.

McDaniels was hired as head coach of the Broncos in 2009 after eight years as a Patriots coaching assistant. He went 8-8 in his first season, then 3-9 in his second season before being relieved of his duties and joining the St. Louis Rams’ coaching staff as an offensive coordinator in 2011.

He returned to the Patriots as an offensive assistant during the team’s playoff run in 2011, and was named offensive coordinator the following season.