"He's got our full support and he's doing a great job - we just need to play better footy," Judd said from Visy Park on Tuesday.
"We're not going to look externally and point the blame elsewhere. The players need to take control of that and put up better performances.
"We're all in this together and we need to get out of it together."
The fallout from the surprise 54-point thrashing continued on Monday when club president Stephen Kernahan rebuked Eddie McGuire after the Collingwood president suggested on Melbourne radio that premiership coach Mick Malthouse would be interested in the Blues' job should it become available.
Judd was reluctant to buy into that issue, preferring instead to "focus on what we need to do to improve".
Despite the intensity of the spotlight the club finds itself under, Judd said the game review process hadn't changed much this week.
"The players had a little bit of a different meeting that was a bit more player driven, but it's really been business as usual," he said.
"If anything there's almost been less meetings, but we're very clear on what needs to happen.
"There's no ambiguity there and we just need to do it."
Carlton's top-four aspirations have taken a beating over the past month, which has seen the side lose three of its past four games.
The team has suffered a high injury toll over that period with players like Marc Murphy, Jarrad Waite, Andrew Carrazzo and Matthew Kreuzer absent last week and Judd admitted the playing list's lack of depth had been exposed.
"Whether that's a lack of depth or that we've had so many significant injuries - not just to eight of our best 22 but eight of our best 13 or 14 players - but we've found it hard to combat," he said.
"Other sides have had injuries and they've been good enough to combat them, so we need to learn from that and not make excuses about it, pull our fingers out and do something about it this Friday night."
Judd said that there were many reasons behind the team's struggles in key areas such as contested possession, clearances and locking the ball inside forward 50.
He backed Ratten's team structures, but said some players - Brock McLean and David Ellard aside - hadn't stepped up in the absence of their more experienced teammates.
"There's been times our structure has been OK and our instinctive play has gone out," he said.
"There's still no substitute for blokes winning critical contests, tackling and winning their own football. If you're just standing in a spot ticking off the structure then sometimes that can be lost.
"If anything I think we should almost worry less about structure and more worry about playing with a bit of freedom, winning those critical contests and playing with reckless abandon.
"Structures are important, but structures don't pay the bills."
The Blues could regain Nick Duigan (calf), Lachie Henderson (groin) and Kreuzer (hamstring) for Friday night's crucial clash against Geelong, but Jarrad Waite (back) will miss another two weeks.
Judd was speaking at the launch of the Boots For All campaign, which is an initiative aimed at recycling used footy boots and sports equipment to give to disadvantaged Australians.
Fans attending Friday night's game at Etihad Stadium are asked to bring such unwanted items and deposit them at special bins at the ground.
The views in this story are those of the author and not necessarily those of the clubs or the AFL
