In his new role, Wallis will be responsible for managing all baseball camps, oversight of student managers, serving as an academic liaison to the Thornton Athletics Student Life Center and the overall operations of the baseball program.
Last season, Wallis was in charge of working with the Volunteer outfielders, assisted associate head coach Greg Bergeron with the squad's offense and manned the first base coaching box.
"Gregg Wallis is one of the top up-and-coming young coaches in collegiate baseball and I feel very fortunate to be able to bring him on board to our staff at Tennessee," Serrano said. "He was a valuable asset to me at both UC Irvine and Cal State Fullerton and I am excited to continue working with him here in Knoxville. The UT program will definitely benefit from the knowledge and insight Coach Wallis will bring to our staff."
Wallis, 30, arrived at Rocky Top after three seasons and three different job titles at Cal State Fullerton. Most recently, he served as the assistant coach and recruiting coordinator last year, working mainly with the team's outfielders, including Big West Freshman of the Year Michael Lorenzen.
In 2010, Wallis was the Titans' volunteer assistant coach after spending his first season at CSF as the program's administrative assistant where he was instrumental in maintaining the facilities, tracking academics and running the youth camps.
"I am extremely proud and excited to have the opportunity to work with Coach Serrano, Coach Bergeron and Coach Mosiello at Tennessee," Wallis said. "All three of them are mentors and people that I really respect and look up to. I can't wait to work with them to bring Tennessee back to promise and return the program to the top of the national baseball landscape.
"I visited Knoxville when Coach Serrano got the job a couple of weeks ago and just fell in love with the campus and facilities. It is an unbelievable college atmosphere and I immediately knew it was something I wanted to be a part of. I am really excited to dig right in and start working with our players. I look forward to beginning to develop relationships with each of them and hope that I can be a leader for them by sharing my experiences as both a player and a coach."
Wallis played for both Serrano and Bergeron at UC Irvine in 2005, served as the Anteaters' undergraduate assistant in 2006 and was the director of baseball operations for the College World Series qualifying club in 2007. He then worked with the Scott Boras Corporation for a brief period, helping to coordinate recruiting efforts and gather information on possible prospects, before joining Serrano's staff at Fullerton.
Wallis graduated from Chatsworth High School in 2001 before going on to a four-year college career as an infielder with the Anteaters from 2002 to 2005. He was the first player to sign with then-head coach John Savage as Irvine resurrected its baseball program for the 2002 season.
A three-time CoSIDA Academic All-American and four-time UCI and Big West Conference Scholar-Athlete, Wallis graduated from UC Irvine in 2005 with a degree in political science and minor in psychology.