A new alliance of four political groups set up to run Anglesey council say they are committed to putting "past rivalries and petty bickering" aside.
Coun Clive McGregor, who remains as council leader, formed the new group, Llais i Fôn (Voice for Anglesey).
Alliance members said they are unified in their commitment to creating "sustainable political stability".
The assembly government stepped in to run the council after a damning report by the auditor general.
"I believe that forming a new alliance, made up of those committed to working together and moving this council forward, is our only real chance of sustainable political recovery," said Coun McGregor.
"Many of us have been on opposing sides of the political divide in the past, and this alliance will undoubtedly raise plenty of eyebrows.
"We are bonded, however, by the common goal of turning this authority around, not just as demanded by the Welsh Assembly Government, but because it is the right thing to do," he added.
Coun McGregor said the alliance is "unique", and that difficult decisions would not be avoided.
Unacceptable conduct would be 'marginalized', he added.
There would be "working cooperations with those who have demonstrated a commitment to moving forward to address the challenges facing Anglesey".
Those who remain motivated by past grievances and personal animosity would be "left behind".
'Leap of faith'
The informal board, which will now be established, will continue to concentrate on "budgetary and efficiency savings".
Former leader of the opposition, Coun John Chorlton (Labour), who will sit on the new informal board said the alliance represents "a huge leap of faith on our parts".
"I'm sure many of us will have to build a few bridges and it will take time to build trust," he said.
"However, the Labour members, together with the Menai group, are committed to the new alliance and working in partnership with Llais i Fôn and Plaid Cymru to ensure it succeeds," he added.
Coun Chorlton said there was "no choice but to make it work".
"We are in the last chance saloon and Carl Sargeant has already made it clear that Cardiff will step in if this council cannot mend its ways."