It is the same Graydon who was CAS from 1992-97. The first 2 years of his tenure were notable for consecutive 25-28% cuts in support funding. The CHART report, which his office withheld from all MoK inquiries, noted 25% cuts across the board. Maintaining Airworthiness was specifically targeted with 28%. Lord Philip accepted the principle that, as this was known to Bagnall (ACAS) and the CE (Alcock), then it was known to CAS. (If he claims otherwise, then he's accusing his mates of dereliction of duty as they were required to elevate such matters!)
Sorry CM, I didn't want the thread to become "another MoK" but it is difficult because that is what Graydon will be remembered for. I hope. I suspect he gave valuable service for most of his career, and he is certainly involved in worthy causes, but his behaviour toward the end means it counts for nothing.