And the details are ... awkward.
At the end of the call, Ryan requested to speak with Pegula one-on-one. Rex then "directly asked him about his future beyond this season," according to The AP.
"I was asked a point-blank question and based on the discussions we've been having all year, I felt it was better to tell Rex that we were going in a different direction," Pegula said.
The ever-loyal Ryan then suggested that fill-in offensive coordinator and longtime aide Anthony Lynn take over as interim coach for the final game of the season.
Pegula's interview came soon after Whaley -- during a news conference that left Bills fans dazed -- took zero ownership over Ryan's dismissal, saying: "I was told by my boss that I will no longer be working with Rex."
Pegula certainly took full ownership of Ryan's firing, but noted that season-long input from the front office was also taken into consideration.
"(Whaley) had input on the basis of conversations throughout the year, what the problems were," Pegula said. "But did Doug ever say, 'Are we firing our coach, are we keeping our coach?' We never had that conversation. I took it upon myself to tell Rex on the basis of conversations about the games and the aftermath of certain games that, hey, things aren't going well."
Said Pegula: "None of us are happy with the season."
Other takeaways from Pegula:
- Pegula called Lynn a candidate to replace Ryan, but "not a lock" for the role of Buffalo's next head coach.