"The Board of Governors have given me complete authority to take a decision on this issue of persons holding dual or more roles in the cricket board or set-up," Khan told a media conference today in Lahore.
"For the time being I have decided not to touch anyone because of the existing circumstances and because there is little time left before the World Cup.
Moin, a former Test captain, said recently that he was comfortable handling both responsibilities and didn't feel any extra pressure.
"If a person is doing his job honestly and with dedication like I have done, I have no problems taking on another job or role as well," Moin had said earlier.
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The PCB has come under criticism in recent times for giving dual roles and jobs to number of former players in the cricket board.
Similarly former Test bowler Muhammad Akram is working as national selector and head coach at the National Cricket Academy.
The PCB chief said that he had the power to take decision on this issue but he would hold it until the situation warrants a decision on dual jobs and roles.
Shaharyar said Moin had so far done a good job as manager and chief selector, and like everyone his job was also linked to the performances of the team.
Shaharyar said it was encouraging to see the way senior players and the youngsters combined to produce good results for the national team.