Garland, who represented England at the 2002 Manchester Commonwealth Games, coached Celtic Dragons in the 2006/7 season, and played for TeamBath during their first Netball Superleague title campaign.
Jan Crabtree continues as head coach of the team after masterminding its two successful Superleague campaigns and is looking forward to the challenges ahead:
"We¹re already beginning to prepare for the new season, even though the Superleague starts a little later this year. We¹re delighted to have Jess on board as a coach and hope she will play a major role in helping us retain the title in the coming season."
After retiring as a player in 2006, Jess became coach to leading side Hucclecote in the Netball Premier League as well as the University of Bath first team in British Universities Sports Association (BUSA) competitions.
Jess has already coached England teams at under-17 and under-19 levels and is a member of England's under-21 coaching team.
Her potential as one of the country's top young coaches was recognised when in 2006 she was named on UK Sport's Elite Coach programme.
"I really enjoyed my time with Celtic Dragons last season. It was my first year of full-time coaching and a really good experience for me," said Jess.
"But coming back to TeamBath, which I have had such a long affiliation with, feels like I'm coming back home," she added. "I'll be facing a different challenge here, but I think it's a great time to be involved with TeamBath.
"With so many TeamBath players away with England at the World Championships at the beginning of this season, some of the other teams might think it's their year to win the Superleague," she added. "But we've got some great youngsters coming through and that makes it an even more exciting time to be part of the TeamBath coaching team."