REGIONAL Rugby Wales acting chief executive Mark Davies believes Sir Wyn Williams will be the key figure in avoiding damaging disputes with the Welsh Rugby Union.
Last week RRW, the body that represents Newport Gwent Dragons, the Ospreys, Cardiff Blues and the Scarlets, agreed a new six-year Rugby Services Agreement with the governing body.
High Court judge Williams acted as mediator throughout a process that RRW have described as "tortuous and uncomfortable".
"Wyn has been pivotal throughout this process, he has been wonderful in his guidance," said Davies.
"He is endlessly patient and really is a proper grassroots Welsh rugby supporter with the brain the size of a planet. His balance, understanding and patience has been profound."
The agreement will see the Professional Regional Game Board reignited with Williams having a casting vote "on mutually agreed issues of interest with the exception of certain reserved matters".
The PRGB was formed in 2012 following a independent report by PricewaterhouseCoopers but proved to be ineffective in bringing the WRU and RRW closer together as Williams did not have the final say.
"From the regions' point of view Wyn's involvement is something that we are very enthusiastic about," said Davies.
"For a PRGB, or any entity, to have meaning it can't be hamstrung, it needs that ability to make a decision.
"A casting vote brings both sides closer together, you can't be poles apart and it encourages one side to convince the other (in order to avoid a casting vote)."