PCB backing down on Mushtaq?

After cominf under some indirect criticism from Imran Khan, it looks like the PCB might be backing down over the hiring of Mushtaq Ahmed as coach. Its always been weird to me as to what rationale there was for hiring a leg-spinner as a bowling coach for our team, specially when its a leg spinner who was driven out of the squad by our current strike legger, and the remaining squad is seamers. Here again Shaharyar Khan contends that Mushtaq has strong coaching credientials. What are these credentials? Where has he coached before? Let us know the track record. He may have excellent credentials, I just want to know what they are!