Sean Payton reached his breaking point with Rob Ryan in November.

"There was a game [during the 2014] season where the first eight plays of the game, we're misaligned, we don't even cover down the right way," the frustrated New Orleans Saints coach revealed days after firing Ryan, his defensive coordinator, 10 games into the 2015 season.

"The point is, we're just not gonna continue on status quo," Payton added that day. "That would be madness, right?"

Rob Ryan, who has built a reputation for coaching complex, yet largely ineffective defenses in his previous stops around the NFL, will get yet another chance to be at least partly in charge a defense next season. Fox Sports' Alex Marvez reported Tuesday that Buffalo Bills head coach Rex Ryan and Rob, his twin brother, will work together to run the defense next season, while coordinator Dennis Thurman reportedly shifts focus to the Bills' defensive backs.

Expect Rex Ryan to talk up his twin brother's abilities as a coach in the coming months -- Rex already told ESPN Radio's "Mike & Mike" on Monday that the Bills "got better" by hiring Rob -- but Bills fans shouldn't be fooled. By hiring Rob Ryan as assistant head coach/defense, the Bills only risk exacerbating the problems posed this season by Rex Ryan's system of defensive checks and adjustments at the line of scrimmage that proved too much for players to handle.

"It's so much thinking involved with [the defense]," Bills linebacker Preston Brown said in December. "A lot of guys [have] never been a part of [it]. It's definitely been difficult. At times, when [they] let us play, you can see we can be one of the best defenses in the league."

"We're all over the place," safety Corey Graham added, via Syracuse.com. "We're all over the place; we don't know what's going on half the time."

Saints and Dallas Cowboys players can relate, because some had the same issues playing under Rob Ryan -- who also served as the Cowboys' defensive coordinator in 2011 and 2012 -- that Bills players experienced this season under Rex.

"There were a few things that you looked at from a year ago [in 2014] and you said, 'We can't have X number of snaps with not the right number of guys on the field," Payton said after firing Rob Ryan last November. "We can't burn timeouts, you know, every other week because we can't get the right personnel on the field. We just can't do that. We can't have guys looking left and right at the snap of the ball."

Payton ripped into Rob Ryan on the sideline after the Saints were called with 12 men on the field during a November 2014 victory over the Pittsburgh Steelers. The substitution problems for the Saints defense, which sometimes resulted in only 10 men on the field, caused Payton to force Ryan to simplify the defensive playbook for the 2015 season.

That helped clean up the Saints' persistent issues with getting the correct defensive personnel aligned at the snap, but the team's overall defensive performance reached historic lows in 2015. New Orleans ranked 32nd in total defense through 10 games, allowing 424.7 yards per game, an average that would have been second-most in NFL history when projected over a full season.

Payton then fired Rob Ryan to prevent what the Saints head coach believed would have been "madness" by continuing along the same path.

What might have truly been insanity was the Saints' decision to turn over their defense to Ryan after his failures with the Cowboys. No team was flagged more for having 12 men on the field on defense than Dallas in 2011, Rob Ryan's first season as the Cowboys' defensive coordinator, and players also expressed frustration with the complexity of Ryan's system.

"We are doing too much back there," cornerback Mike Jenkins said late in the season. "Last week, we weren't all the way there, anyway, because of injuries. I went out and [cornerback] Frank Walker had to go in. He was starting at one point, and [cornerback Alan] Ball was starting at one point. [Safety Abram Elam] would give me a signal that Frank or Alan may not know or see."

Sounding much like his brother when the Bills faced problems this season, Rob Ryan held himself accountable for the Cowboys' problems and pledged to fix them.

"It's on me," Rob Ryan said late in the 2011 season. "It's my watch. But the simple fact is -- and I know no one believes it -- but I know I'm the best coach or the best defensive coach. Teddy Roosevelt had a big line on critics: I know you know it, but I don't. The bottom line is I tell my players I'm Sugar Ray Robinson. I'm the champ, and I always know I'm the best. Now maybe nobody else in the media believes it, but I know the guys in the locker room do and I do. So whatever it is, hey, I'm the man who is in charge. I'm the man who will fix our problem."

The Cowboys, who finished 17th in total defense in 2011, did not fix their problems in 2012. They allowed the NFL's fourth-most yards and Rob Ryan was fired after the season.

"Where we fundamentally came down with Rob is that his philosophy is about multiple scheme," owner Jerry Jones said. "I think you have to skinny it down. Philosophically, I don't think Rob believes in that. And it's not something that happened and all of a sudden at the end of the year we had a problem. I think Rob will tell you we had long visits about this in the offseason last year, that there was too much scheme. He tried to cut it back and he did skinny it back, but it's still a lot."

Now Rex Ryan, whose scheme had several of his defensive players flustered this season, will combine forces with Rob Ryan, who will try to shake off his reputation for unwieldy and largely unsuccessful schemes and become the Sugar Ray Robinson who leads the Bills' defense to the playoffs next season.

But that's not madness, right?