Im sorry but one or even a small handful of driving schools isnt going to do much to prevent this.
Im not saying those are bad things to do at all but they dont teach you car control and familiarity with your car. never mind the fact that on the track anything can happen at anytime to anyone no matter how much experience you have under your belt.
but (without being there) it sounds like the driver was just not familiar with how that car behaves once things get a little slippery. If he only had it for 4 weeks I can see that as the case.
He probably shouldnt have been going 11/10ths.