And that would figure to be Gundy, who has assumed Monken's duties as quarterbacks coach and has joined staff meetings for a larger role.
Chelf said that he knew who would be calling the plays, yet didn't figure he had the clearance to say so.
It's a role Gundy knows well, having served as OSU's offensive coordinator as an assistant under Les Miles and as the play caller as Cowboys head coach from 2008-09.
It's a role, however, Gundy has since pushed back from. Citing a need to devote more time to the overall scope of the head coaching job, he hired Dana Holgorsen to run the offense in 2010, then brought in Monken when Holgorsen left for West Virginia.
Professing no hurry to name a replacement for Monken — and declining comment on rumors that former Missouri offensive coordinator David Yost has been offered the job — it seems only natural that Gundy will be heavily involved.
The last time Gundy lost an offensive coordinator, Holgorsen stayed on through OSU's Alamo Bowl win over Arizona in 2010, before taking off for a planned head-coach-in-waiting position at West Virginia.
That was not an option here, with Monken focused on building a staff, recruiting and getting acquainted with the team and program at Southern Miss.
Before ever interviewing with Southern Miss, Monken talked about the difficulty of serving two masters just as a candidate who entertains job talks or engages in interviews.
“I owe it to our university and our players to do my best,” Monken said the week of the Baylor game. “When you're involved in a job, you cannot. When you're involved in an interview, you cannot give the best to the place you're at. There's no way you can.
“Anybody who says they can, they're liars.”
So the Cowboys move on without Monken.
And with a group approach to calling plays.
“There's other guys in the room who can do it,” Gundy said. “I don't just need to do it myself. Over the next two weeks, we'll come up with a game plan, work it in practice and at the bowl site make a decision how we want to do it on game day.”