I think the same can be said for the opposite for funds that are at the top winning. It's like the argument goes, if 1000 fund managers went out to pick stocks for their clients, you're going to find 1 or 2 that will beat the S&P500 index after 10 years. But who would be willing to think those 2 would repeat the same performance, when they've only been lucky? Diversifying will end up be the same.

PIE funds are just a tax break for those that are in the top income tax bracket but get the benefit of the maximum 28% tax rate in that fund, when the person could easily be at the much higher tax rate.