I'll expand on this more later but to get in on the conversation, he is lacking the killer instinct. The Open Championship is a perfect example. That was his for the taking. I'm sure it's happened, or maybe it's hasn't, but when's the last time someone in his group besides him one in a major? Especially when they weren't in the final group? Not taking anything away from The Champion Golfer of the Year, but that performance would have never beat yes the old Tiger.
Sure there are a lot of stats that point to how poorly he's playing. There's also stats that point out to how well he is. Primarily he has one of the best stroke averages this year. He's almost always in top ten position. It'll click. He'll have a week where he drives it well and putts great. That doesn't concern me, and he'll win that week. What makes me think we won't see the dominant Tiger again is the lack of a killer instinct. He hasn't shown that at all.
Jordan might argue that point.