Now that Brian Daboll has officially been named the new head coach of the New York Giants, one of the most important hires in the five-year tenure of Buffalo Bills head coach Sean McDermott is on the horizon.

As with all coordinators, the wild swing of fan emotions between “this guy is a genius” to “this guy is an idiot” was omnipresent during Daboll’s four seasons calling plays for Josh Allen and the Buffalo offense.

I’m here to tell you, Daboll was far closer to a genius than he was an idiot, and those who believed it was time for a change in Buffalo may rue that they ever felt that way.

A sizable part of Allen’s development from questionable No. 7 overall draft pick, to wildly inconsistent player for two seasons, to true superstar status in the last two seasons, lands squarely on Daboll.

He was the perfect mentor, coach, play-caller, cheerleader, confidant, and friend for Allen because he knew exactly how to mold the greatness — both on the field and off — that he, McDermott, Brandon Beane and the rest of the Bills’ decision makers believed was in that 6-foot-5, 240-pound raw chunk of clay.

Now that Daboll is gone, McDermott has to find a new coordinator who can continue that process and keep Allen moving forward because now that the Bills have invested a quarter of a billion dollars in the quarterback, there’s no room for regression.

Buffalo’s championship window, with this mega talent at quarterback, is right now. The need for a smart and creative offensive coordinator, but also someone who doesn’t have a massive ego who will try to reinvent the wheel and force a “my way or the highway” system on Allen and the offense, is an absolute must.

Allen has had uncommon stability in Buffalo since the moment he arrived in 2018. Daboll has been his only coordinator, and Ken Dorsey — who very well could be heading to New York with Daboll to be his offensive coordinator — has been Allen’s QB coach for three years.

“I feel fortunate that Josh has only had one offensive coordinator,” Beane said the other day. “You see young quarterbacks struggle that have to go through multiple coordinators. So that was one of the things that we put down — stability in the offensive system and the coaches around him. So it’s been a great four years and three of those years Ken Dorsey has been right there, Shea Tierney (assistant QB coach), we’ve had a great group. Even Davis Webb in his own way, he’s like a player-coach for us.”

It was inevitable that the band would be breaking up, and while losing Daboll is tough enough, it’s possible he brings Dorsey, Tierney and other offensive assistants with him to the Meadowlands. Further, there’s no guarantee that Webb will want to return to Buffalo’s practice squad because he still wants to play or, at the very least, be active on game days as a true No. 2.

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It was good to hear that Beane and McDermott plan on including Allen on the decision to replace Daboll because they know Allen needs to be comfortable with the selection.

“Definitely value his opinion,” Beane said. “We have a great relationship. I sat down with Josh on Monday and we just talked about the game, the season, life, and he’s in such a great spot. I’m so proud of where he’s at. I and/or Sean, we’d be crazy not to loop him in. We’d be silly not to get Josh’s opinion.”

Nothing is broken in Buffalo. If not for those ridiculous final 13 seconds in Kansas City, Daboll would be calling plays Sunday afternoon in a second straight AFC Championship Game.

The future remains bright and an overhaul is not needed, not when you have Allen as the cornerstone, and strong offensive building blocks, among them Stefon Diggs, Gabriel Davis, Dawson Knox and perhaps Devin Singletary.

Just like every offseason, the roster needs work. Beane has to look to improve the interior of the offensive line, and the wide receiver group may be changing as he might have to replace Cole Beasley (a potential salary cap casualty), Emmanuel Sanders (unlikely to be re-signed) and Isaiah McKenzie (free agent).

But all of that comes after the offensive coaching staff is finalized, and McDermott — who will have the primary say on who he wants to bring in — cannot misfire.

He did it once when he hired Rick Dennison to be his first offensive coordinator in 2017. Wisely, he recognized the blunder and made an inspired choice to bring Daboll to Buffalo, then watched the mad scientist with the multiple personnel groups and concepts help drive the Buffalo offense to 957 points in the last two years, production that surpassed anything Jim Kelly and the K-Gun offense managed back in Ted Marchibroda’s play-calling days.

Dorsey’s situation bears watching. If he goes to New York, it seems like he may still be ceding play-calling duty to Daboll who will probably want to continue in that role.

If the Bills can convince Dorsey to stay as their new coordinator, wouldn’t calling plays for Allen and this dynamic offense be more inviting than trying to remake Daniel Jones and the moribund Giants offense?

Let’s give Allen the last word on that.

“I think when he got here three years ago, my career definitely changed in terms of how I viewed the game of football,” Allen said of Dorsey. “Just having a guy in the quarterback room that played the game, was the winningest college quarterback of all time; 38-2, he'll never let me forget that, he says it all the time. But just the way he approaches the game, he's competitive, he's smart, he works his ass off. I appreciate what he's done for me over the course of my career so far.”

Sal Maiorana can be reached at maiorana@gannett.com. Follow him on Twitter @salmaiorana.

This article originally appeared on Rochester Democrat and Chronicle: Brian Daboll replacement has to be a home run for Buffalo Bills