Hall will not only have to serve whatever penalty is handed down by the tribunal for his alleged strike on Brent Staker, but will also need to earn back the respect of his teammates, Barry said.
"Everyone's disappointed in what happened with Hally's actions," Barry said.
"I think everyone has felt as though he's let everyone down a bit.
"But he's got to face the consequences, and we've just got to move on and look forward to the next week."
Barry said Sydney Swans players were unhappy that Hall had slipped up after having curbed his formerly wild ways and been "exemplary" in his behaviour over the past five years.
After surgery to repair a broken wrist on Monday and a tribunal hearing on Tuesday night, Hall will have to face the Swans leadership group later in the week.
"At some stage we'll have discussions with Hally. He understands the situation, has taken full responsibility, so he's going to take it on the chin and move forward," Barry said.
"He's disappointed, he'll bounce back pretty quickly, he's a pretty resilient sort of fellow, he understands what's happened and what's required to get back into the team."
As far as coping without him in the forward line, Barry said they had managed it last year when Hall was injured at various stages.
Classy forward Nick Davis is likely to return against Geelong at Skilled Stadium on Saturday after a spell with the Swans reserves.
The Swans also travelled to Geelong without Hall last season; the big forward absent with a groin injury when they went down by three goals in round 13.
"It's going to be a huge challenge, their midfield has been exceptional, they've been winning a lot of the ball, they're definitely the measuring stick at this stage," he said.
"For us, it's really just seeing where we are at and how much we need to improve to be in the top few."