A little more to it than that,
Clott old boy (pun intended). Walker D's KCVO is/should be a bit of a giveaway - ain't many 2* knights about....
He's been Master of the Queen's Household for six years (and may well be staying there!) so one senses the fair hand of HM herself in this .....
Certainly her hand is in the KCVO, which is in her personal gift; she has been known to whisper when presenting something from the RVO (MVO, LVO, CVO etc): "This one's real, not from the PM!"
As another thread (albeit rather coarsely) suggests, this is the
Royal Air Force after all .......
Edited to add:
... and you'll probably find that Morrison's "new" post is in effect a rustication from the Ministry.....