The latter stages of McCullum’s tenure have been blighted by off-field issues. During the winter, Harry Brook, Jacob Bethell, Josh Tongue and Ben Duckett were all involved in late-night incidents.

After England won the first Test of the summer against New Zealand, the series was derailed by Stokes and Gus Atkinson breaking the team’s midnight curfew and being present when a member of security staff was struck by a Saracens rugby player.

And McCullum accepted responsibility for what happened on and off the field.

“I was the leader of that group. I was in charge of the team culturally, in charge of the team tactically, in charge of the team results wise as well,” said McCullum.

“If you don’t get the results, being a results business, fundamentally you get replaced. I’m not unaccustomed to that, I’ve been around this game for 20-odd years and I know if you aren’t getting the results, someone else needs an opportunity.

“I put my hand up for that and accept it wasn’t good enough.”

McCullum and Stokes have both previously denied they grew apart during the Ashes series, and McCullum said he has heard from the all-rounder since news of his departure from the Test role emerged.

“I got some nice messages from Stokesy,” said McCullum. “I guess, in a romantic kind of way there’s something about Stokesy and I going out together. We started it together and we go out together, and I have no problem with that.”

England’s search for a new Test coach is already under way, and Gould explained on Sunday a coach will be appointed before a new captain is finalised.

Gould also suggested that the captaincy would be split, perhaps hinting that white-ball captain Brook, also the Test vice-captain, would not be able to lead across all formats.

Brook and McCullum have formed a strong bond while working together with the white-ball teams, and England’s T20 side have just moved to the top of the world rankings.

It raises the question as to whether that partnership will be broken up if 27-year-old Brook takes control of the Test side.

“You know my thoughts on Harry, my affection for him as a player, person and leader,” said McCullum.

“He’s got one of the best tactical brains I’ve seen in someone so relatively young. He’s developing at an incredible speed as a leader. I love working with Harry and I’d love to continue to do so.

“There will be lots of robust conversations throughout. Myself with the white-ball and whoever takes over the red-ball, ultimately there’s going to be harmony across all three teams because we’re going to want what’s best for English cricket.”

McCullum previously had experience working in an environment where the coaching responsibilities were split. For two years, he was Test coach, with Matthew Mott in charge of the white-ball teams. When Mott was sacked in 2024, McCullum assumed overall control.

A heavily congested schedule lends itself to splitting the coaching jobs, but can also lead to one team being sidelined in terms of access to multi-format players.

McCullum will now have to build a working relationship with the new Test coach.

Former England coach Andy Flower could be a candidate, while McCullum’s former New Zealand team-mate Stephen Fleming is highly respected and has just left Indian Premier League side Chennai Super Kings.

Ex-England batter Jonathan Trott has international experience with Afghanistan and Glamorgan coach Richard Dawson is seen as an emerging homegrown contender.

“Once the Test coach is put in the post, we’ll work collaboratively to try to work out what is right for all three formats, and what is right for English cricket,” said McCullum.

“I expect that to be robust, but hopefully a profitable conversation for everyone. Fundamentally, we just need to get what’s right for English cricket. That will be the number one motivation.”

England, under McCullum, begin a three-match one-day series against India at Edgbaston on Tuesday.

Jos Buttler will play his 200th ODI for England, while the tourists can call on the likes of Virat Kohli, Rohit Sharma and Jasprit Bumrah.