A DEFIANT Dean Bailey maintains Jack Trengove did nothing wrong despite Melbourne's failed attempt to have the 19-year-old's three-match suspension overturned by the AFL appeals board on Thursday evening.

The Demons coach addressed the media on Friday morning after a turbulent week that saw Trengove go to the AFL tribunal to contest a charge of rough conduct levelled at him after his tackle on Adelaide's Patrick Dangerfield during their round seven encounter at the MCG.

Bailey expressed his disappointment at the decisions of the tribunal and appeals board and vowed his players would not be instructed to alter their tackling technique in the wake of the suspension.

"We've got a young man who we think has tackled effectively and we defended him strongly," Bailey said from AAMI Park.

"We threw every resource we could at it and we'd do it again tomorrow with another Melbourne player.

"Our tackling technique is what it is and we believe it's in accordance with what's expected. Players practice on players and the interpretation of the AFL tribunal. We've been tackling like that for three years.

"There's maybe 150 tackles every game. You go through them all and you try to determine the intricacies of a tackle and the split second of them getting rid of [the ball]. Our technique won't change and our attitude to tackling, like every other club, is to tackle to win the ball back off the opposition. That doesn't change."

The tribunal decision sparked a series of angry responses by Melbourne players on social media site Twitter, but Thursday night's appeals board finding was not met with the same public reaction.

''I said to them yesterday in regard to Twitter, hold your tweets," Bailey said.

"No point in going on again. It was a frustration first time, be smarter the second time, [but] I'm not going to put them in a straightjacket and stop them from tweeting.

"Most of the players were just showing a great deal of support, to be honest. In the social media now there are many styles and options available and they were a bit frustrated and they were just supporting Jack."

That initial response saw the AFL write to the club under AFL player rule 23.18.2, which covers criticism of a tribunal decision, with a response required by midday on Friday.

The Demons will attempt to back up the 96-point victory against Adelaide with a win over North Melbourne at Etihad Stadium on Saturday. Despite the events of the week, Bailey maintained his players would be well-prepared for the clash.

"Unfortunately the decision didn't go our way and it's now up to us to not allow it to become a distraction and get on with business," he said.

"Every week in footy there are always curveballs that are thrown at you. How you deal with it and how you move on from it is a test for all clubs.

"It can be [a distraction] if you allow it to be. I think most people would appreciate that, but if you make a big deal out of something too often and talk about it all the time, then it can become a distraction.

"Internally we've been really focused on improving our performance from last week."

Trengove was named in the Demons' team to take on the Roos, but his suspension saw Neville Jetta elevated from the emergency list with young ruckman Max Gawn replacing Jetta.