I'll offer a slightly converse opinion here, only as it pertains to Rangers.
One of the most difficult adjustments for an elite World Class player managing 'lesser' calibre is making adjustments from your exacting standards as a player to an acceptable level in management.
His standards at Rangers CANNOT (and aren't now) be the same ones when he was at Melwood.
I know he struggled with that initially, but is much more comfortable now.
His expectations are tempered, but still EXTREMELY demanding - as they should be and as we expect them to be.
By the way, players being referred to include Cisse, Diouf, Le Tallec, Pongolle, Carroll and Mark Gonzalez.