[1] Before returning to Butler, Matta spent a season (2021–22) as the Associate Athletic Director for Indiana and the men's basketball team.

In total, Matta spent six seasons as a full-time assistant coach at three different universities, helping his squads compile a composite 128–58 (.688) record and make six postseason tournament appearances.

Matta served as an academic coordinator and administrative assistant at Butler (1991–94) before moving into the full-time coaching ranks.

At Xavier, Matta led the Musketeers to three consecutive 26-win seasons, back-to-back Atlantic 10 Conference regular-season championships in 2002[2] and 2003[3] and two league tournament titles in 2002 and 2004.

In addition, Matta became the only first-year coach in conference history to ever win both the A–10 regular season and tourney championships.

No time was wasted preparing for his first season in Columbus, which culminated in a 65–64 victory over undefeated and top–ranked University of Illinois in the regular-season finale at Value City Arena before a packed house and a national television audience.

[7] In the 2005–06 season Matta led the Buckeyes to an outright Big Ten Championship for the first time since 1992, finishing one game ahead of Iowa and Illinois.

[13][14] In the 2010–11 season, Matta's Buckeyes were 29–2, ranked #1 in all polls (16–2 in conference play), and won the outright Big Ten Championship.

[15][16] The Buckeyes beat Penn State on March 13 to win their 2nd consecutive Big Ten tournament title.

Ohio State advanced to the Final Four for the second time in Matta's career, before losing to Kansas in a game the Buckeyes led by nine at halftime.

On March 12, 2015, Matta set a school record for victories, winning his 298th game for OSU after defeating Minnesota in the Big Ten tournament.

On June 5, 2017, Matta mutually agreed with Ohio State to step down as its head coach due to health issues that were causing a decline in team performance and recruiting.

[17] His final season at Ohio State was the first time in Matta's entire career that he failed to achieve at least 20 wins.