I got the same impression on Ancelotti. A lot of truth about his (lame) tradesmanship surfaced during his time in Bayern where half the squad rebelled for the luck of training intensity. Something unheard of.
Basically, it seems that Don Carlo arrives with his entourage to an established club full of superb players...what does he need to do? Just give them a fatherly kiss on the forhead and off they go and play. That's still not nothing but far from being a tactical genius.
I think, those CL wins with Madrid were more about luck than anything else.