Rob Andrew (right) was appointed Sussex chief executive in November 2016

Sussex chief executive Rob Andrew says introducing conferences to the County Championship would create an “even playing field” in red-ball cricket.

Andrew feels promotion and relegation between the current two divisions does “little for the game in the long term”.

An 11-person working group, including Sussex director of cricket Keith Greenfield, is to start looking at the domestic structure from 2020.

The ECB plans to make its new city-based competition a 100-ball format.

The Professional Cricketers’ Association (PCA) will meet with the ECB on 8 May to share players’ concerns about the new competition.

Some have expressed worries about where the 50-over domestic competition sits alongside the four-day County Championship, the new 100-ball tournament and the T20 Blast, which will continue in its current format.

Leicestershire chief executive Wasim Khan will chair the working group set with “refining the structure of men’s county cricket that has been agreed for 2020”.

Former Rugby Football Union director Andrew expects it will be “a challenge” to reach a solution.

“Nobody is saying it’s going to be easy,” he told BBC Sussex. “Cricket goes to a whole new level of complexity compared to rugby union.

“But, you need to have a debate and put all those things on the table and see if you can’t shake the box.”

Scrap two divisions for conferences?

Andrew has joined a number within the game who feel the current County Championship of two divisions – eight in Division One and 10 in Division Two – should be replaced by three conferences of six.