Before Thad Matta announced he was leaving Ohio State earlier this week, he had the second-longest tenure of all Big Ten basketball coaches.

First, of course, remains to be Michigan State's Tom Izzo, who took over the MSU program from Jud Heathcote in 1995. Since then, coaches at every other Big Ten school have come and gone, but Izzo has continued to build the Spartans across more than two decades in charge. Now, Purdue's Matt Painter, who replaced Gene Keady in 2005 -- 10 years after Izzo became the head coach at Michigan State -- has the conference's second-longest tenure.

Izzo's success led to his induction into the Basketball Hall of Fame last summer, and as impressive as anything is the longevity he's had at one program. In fact, during Izzo's tenure, the other 13 programs in the conference (including those added in expansion the last few years) have employed a combined 52 head coaches after Ohio State announced the hiring of Chris Holtmann as Matta's replacement Friday. Even if you limit it to coaches who were with their respective programs when they were Big Ten members, that number is still at 44.

So today, we take a quick look at all the head coaches at every current Big Ten program since 1995.

Coaches in place when Izzo took over in 1995 (end of tenure)

Illinois: Lou Henson (1996)

Indiana: Bobby Knight (2000)

Iowa: Tom Davis (1999)

Maryland: Gary Williams (2011)

Michigan: Steve Fisher (1997)

Minnesota: Clem Haskins (1999)

Nebraska: Danny Nee (2000)

Northwestern: Ricky Byrdsong (1997)

Ohio State: Randy Ayers (1997)

Penn State: Jerry Dunn (2003, hired same year as Izzo)

Purdue: Gene Keady (2005)

Rutgers: Bob Wenzel (1997, hired same year as Izzo)

Wisconsin: Dick Bennett (2001, hired same year as Izzo)

Coaches hired after Izzo

Illinois: Lon Kruger (1996-2000), Bill Self (2000-2003), Bruce Weber (2003-2012), John Groce (2012-2017), Brad Underwood (2017-present)

Indiana: Mike Davis (2000-2006), Kelvin Sampson (2006-2008), Tom Crean (2008-2017), Archie Miller (2017-present)

Iowa: Steve Alford (1999-2007), Todd Lickliter (2007-2010), Fran McCaffery (2010-present)

Maryland: Mark Turgeon (2011-present)

Michigan: Brian Ellerbe (1997-2001), Tommy Amaker (2001-2007), John Beilein (2007-present)

Minnesota: Dan Monson (1999-2006), Tubby Smith (2007-2013), Richard Pitino (2013-present)

Nebraska: Barry Collier (2000-2006), Doc Sadler (2006-2012), Tim Miles (2012-present)

Northwestern: Kevin O'Neill (1997-2000), Bill Carmody (2000-2013), Chris Collins (2013-present)

Ohio State: Jim O'Brien (1998-2003), Thad Matta (2004-2017), Chris Holtmann (2017-present)

Penn State: Ed DeChellis (2003-2011), Pat Chambers (2011-present)

Purdue: Matt Painter (2005-present)

Rutgers: Kevn Bannon (1997-2001), Gary Waters (2001-2006), Fred Hill (2006-2010), Mike Rice Jr. (2010-2013), Eddie Jordan (2013-2016), Steve Pikiell (2016-present)

Wisconsin: Bo Ryan (2001-15), Greg Gard (2016-present)

Current ranking of longest-tenured coaches

Tom Izzo, Michigan State (1995)

Matt Painter, Purdue (2005)

John Beilein, Michigan (2007)

Fran McCaffery, Iowa (2010)

Pat Chambers, Penn State (2011)

Mark Turgeon, Maryland (2011)

Tim Miles, Nebraska (2012)

Chris Collins, Northwestern (2013)

Richard Pitino, Minnesota (2013)

Greg Gard, Wisconsin (2016)

Steve Pikiell, Rutgers (2016)

Brad Underwood, Illinois (2017)

Archie Miller, Indiana (2017)

Chris Holtmann, Ohio State (2017)

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