We've reached the basic crux of our disagreement! I can't only look at this year. I am sympathetic to your argument that rebuilds don't work, but neither does standing still. The only thing that works, and it's no guarantee, is spending lots of money. There's been outliers, sure, but they are outliers.
I think Milwaukee, Tampa, and to a lesser extent Cleveland have it right. Bail a year too early on most players, have depth in pitching, get lucky.
My example is Kepler. They should have dealt him a year early.