Pure class comments from the man, and I reckon there's a big slice of Ole loyalty in his decision too.
If it's true RR hadn't even bothered to speak to the first team coach ahead of his arrival that's a pretty clear indication of how much he values them, I expect big changes there.
If I was Carrick I'd feel disrespected tbh the least he could've done is wished him luck ahead of the game. I wouldn't stick around to be sacked either, given his status at the club he deserves to leave on his own terms