Josh Davis, who would be displaced as the starting right tackle, was mum on the moves.
"No comment," he said, with a slight grin. "I can't talk about that."
Head coach Mark Richt, when asked about Gates with the first unit, also declined to elaborate.
"You noticed that?" Richt said. "Well then why don't we tell Tennessee what we're doing."
Richt, who was smiling when he said that, had allowed the media to attend an extra five sessions and 25 minutes on Tuesday.
Georgia's offensive line was supposed to be a strength this year, but has struggled. The Bulldogs rank 10th in the league in rushing offense, and have allowed 12 sacks in five games.
"We haven't played like we'd like to play," offensive line coach Stacey Searels said Tuesday. "I want the five best guys to play together. A couple guys have played really well."
Richt: ‘I'm coaching my tail off'
Richt was asked after Wednesday's practice if he felt like he was coaching for his job.
"You always are. I think you always are," he said, then took a long pause before adding: I'm coaching my tail off though, I can tell you that."
Richt was asked if the job security issue was fair, considering his success. He is 91-31 in 10 seasons at Georgia.
"Oh, I'm not getting into all that," Richt said. "There are only so many things I can control, and that's what I'm working on."
Brown out, Durham questionable
Georgia's receiving corps is growing more depleted, even after A.J. Green's return from suspension.
Kris Durham, who missed the Colorado game with a pinched nerve in his neck, has a 50-50 chance to play against Tennessee. Richt said Durham would probably be a game-time decision, as he was at Colorado.
Punt return duties
Logan Gray will "more than likely" return punts, with Branden Smith out with a concussion. Gray did so at Colorado despite having lingering issues with a sprained ankle, an injury he incurred in preseason.
"He still tweaks it about once a week, so I don't know if he's still full-speed," Richt said.