Until he accepted the job, he was the Assistant Women's Basketball Coach at fellow-ASC member UT-Dallas.  He's been in that position for the past two years under head coach Polly Thomason.  The two were a formidable team, re-writing all the UTD single season records during that time.  In 2006-07, the Lady Comets set the then-school record for wins and had the first winning season in the program's history by going 16-10 overall and 12-8 in the ASC East.  This past year, the Lady Comets took off, winning 21 games to only five losses, winning the ASC East Division, sweeping the ASC West Division in the process and earning the program's first recognition in the national top 25.

Success and Wallis are not anything unusual.  The Arlington, TX native was a three year member of men's team at Austin College.  In his senior year, he was named captain, earned All-ASC honors (both playing and academic) and helped lead his team to the ASC Championship.  He began his coaching career there as a graduate assistant in 1997.  In 1999-2000, he guided the men's team at Tom Bean high school to its first bi-district championship in any sport in 11 years.  The next year he moved to an assistant women's basketball position at Texas Wesleyan (NCAA Division II) and the team earned its first regional ranking in the school's history.  He moved to Division I and spent the 2001-02 year as an assistant women's coach at NCAA Division I Montana State and the team went on to win it's first conference championship in nine years.

Wallis took a trip over to coach on the men's side when he was named head coach for another ASC member, UT-Tyler, for their new program in 2002.  In his second season at the helm, the Patriots finished second in the ASC East Division but Wallis resigned after four years of coaching to return to the women's game that was the core of his experience.

Known as a tremendous skill developer and teacher of the game and a tireless worker both on and off the court, he is also passionate about the academic success of his players. 

He graduated from Arlington HS in 1992, earned his Bachelor of Arts degree in Physical Education in 1997 from Austin College and added his Master of Science degree in Kinesiology from Texas A&M-Commerce in 1998.