Sethi said the Board was planning to bring amendments in the constitution which would change the governance and management structure as well as in domestic cricket in the next six months.
He said once the constitutional amendments are made, the 12-member management committee will elect the PCB chairman.
For long, the PCB chairman has been directly appointed by the Patron-in-Chief which was until recently the Pakistan President and thus he enjoyed absolute power and authority and could do anything as he liked.
"The change is that the chairman's post will be more of a ceremonial one and a team of highly qualified professionals approved by the Prime Minister will select and appoint a chief executive who will have the powers to run day-to-day affairs of the Board," he said.
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"The Chief Executive will run the Board with input from the management committee and chairman, but he will be a top grade professional who should have experience in everything, administration, marketing, finance, how to deal with ICC and other Boards and cricket," he added.
"That's something we are working to also improve our domestic cricket. But the crux is, these 12 regional bodies will have a management committee, including representatives of their departmental sponsors, and this committee will have a representative to the Board's governing body," he said.