On the subject of high number of (simultaneous) games - I have been reading Frank Brady's biog of Bobby Fischer (forgive me for introducing him to this thread), and on p.72 :
'"With some idea of getting him into an event worthy of his immense talent, I proposed that he give the most ambitious simultaneous exhibition of all time. The record he would be attempting to break was that set by Swedish Grandmaster Gideon Stahlberg at Buenos Aires in 1941, when the Swede played 400 opponents for 364 wins, 14 draws, and 22 losses. I suggested that Bobby try to go beyond this in number of games played and won. Fischer accepted the challenge at once and proposed to give himself the additional handicap of playing half the games with the black pieces... The Buenos Aires feat had taken 36 hours; Bobby figured that it would take him "5 or 6 hours to complete 75% of all the games and a few more hours to knock off all those that remain." He was supremely confident, and we were both increasingly excited about the project."'
..."The terrible news from Dallas on November 22 caused us to postpone the exhibition (to be held on Nov.27)..."
I just love that nonchalant phrase "knock off", spoken almost as if his opponents were dying victims on a battlefield.
I don't think Kasparov's coach had a Super GM title.
A completely different situation. And obviously they wouldn't have had "take-back" games, which is rather ridiculous considering that at least about 90% of the time Paul will have much less of an idea whether Kacparov's moves are good than Kacparov himself will.
Anyway, let me know if I'm completely wrong once you start the "lessons" Kacparov.