The WRU has appointed external consultants Gatenby Sanderson, who are described as a specialist executive search firm, to support the chair recruitment process.
Collier-Keywood, the WRU’s first independently appointed chair, will step down after completing his three-year term in charge.
“We will run an independent, thorough and detailed recruitment process and will have a new chair in place as soon as possible and in advance of our AGM in the autumn,” said Manders.
“I’d like to take the opportunity to thank Richard for the unquestionable commitment he has shown to Welsh rugby over the last three years.
“He has made a hugely positive contribution, bringing financial security to the business and taking the lead on a welcome cultural and structural evolution across the game.”
Gatenby Sanderson will also be supporting the recruitment of two independent members of the Professional Rugby Board (PRB), which oversees the professional game on behalf of the WRU and the four clubs.
One of these two new recruits will also be elected chair of PRB by its members, an appointment which in turn commands a place on the WRU Board.
Former PRB chair Malcolm Wall stepped down in March with Marianne Okland taking over on an interim basis.
