I don't think MSC drove a great race at Korea. I think he drove a good race, or 'solid' as some others have described it.
I think he showed skill and bravery at the beginning but from then on he didn't really beat anyone on merit that he wouldn't be expected to in the MGP (with the exception of the clearly out of sorts McLaren of Button).
He did however keep it on the track and get to the end which deserves plaudits and is more than some of his peers managed. Webber is the only one among the 'top' drivers to self induce his own race end though.
For me there's nothing to suggest this is a turning point in performance or form, just a 'solid' race.
I like to add these wet tyres/intermediates have more sensitive zones and periods of freshness and don't like to be on the attack often, they liked to be drived a certain way, I don't think Michael was pushing once he got into 4th place, by keeping the position, now had these tyres neen the old sort Michael used to drive on, anyone remembers those great intermediates bridgstone used to do, even michelin's wet tyres in 2006 rocked, then I'm sure Michael could of took some risks if he wanted to in pushing, he tried that in malasyia qualifying, was 1st in the one of the sessions, then ruined his tyres in the last session by pushing too early. The limits of his mercedes and how they treat it's tyres is how Michael was driving his race, the only reference poiint was Nico and he was out. To be ahead of Kubica and finish ahead of Renault objective complete. Had Kubica been ahead of Michael by a bit, likely Michael would of pushed more towards the end, but driving fast every lap does not always win you points, races and championships, decisions on when to push is important, if we look at Vettel's engine, he was on the attack, he has no points. When you have a opportunity to preserve things, then do it, that's how these rules saves drivers, and the regulations make drivers attack less.
If we had pitstop 4 tyres, 1 race engines, all out attack in the old days, our old Schumacher would of been a bit more wild, even the rules seem to encourage more jenson button smooth driving to save the blasted tyres thing.
The car design of ferrari/redbull/mac is helping those drivers preserve their tyres more, nothing Schumacher can do there.
I don't expect Michael to solve his issues this year, he wasn't ready for these regulations, the team had no resources to fight for a title this year the way they would of wanted, testing is gone, all in all, I'm glad he's gotten some good races in for what was a far more difficult year for him to return in then expected.