Holtmann spent two seasons as an assistant at OH under former IL head coach John Groce, a former Matta assistant, before serving as the head coach at Gardner-Webb for three seasons.
When Holtmann takes over in Columbus, it'll be his third different head coaching job with a positive track record in his previous two stops.
Before working in Indianapolis, Holtmann led Gardner-Webb for three seasons from 2011-13, compiling a 44-54 record.
Creighton head coach Greg McDermott met with Ohio State officials on Wednesday night and appeared to be leading candidate for the Buckeyes.
Jordan, who worked under John Beilein from 2010 to 2016, just completed his first season as head coach at Milwaukee.
Current Boston Celtics assistant coach Micah Shrewsberry, who coached at Butler from 2008 until 2011, is also expected to be considered for the job, as is current Milwaukee head coach Lavall Jordan, who played at Butler and was an assistant coach under Todd Lickliter.
The Bulldogs won 25 games this past season and advanced to the Sweet 16, where they fell to eventual national champion North Carolina.
Shrewsberry was a part of the Butler staff when Stevens turned the Bulldogs from mid-major darlings to snarling NCAA Tournament power.
Holtmann is an intriguing hire and was at least one of the names first brought about when the OSU job opened.
He was originally hired by the Bulldogs as an assistant coach in 2013, and spent a season in the position.
Chris Holtmann is expected to be formally introduced as the new coach on Monday.
Ohio State is coming off a 17-15 season a year ago and has been hit hard by player departures and recruiting woes. They aren't attention whores, which is the flawless demeanor for a basketball coach to have on the campus of a football school. Recruiting is key for a coach like Holtmann to be successful in the Big Ten and I believe he'll be successful in that category.