It doesn't work because politicians are not allowed to admit failure. A politician who admits that they tried something, no matter how small, and it didn't work, is fish food. This means there is no difference in downside, for the politician, between going all in on a big decision with huge risk versus taking baby steps. The politician is dead no matter what. They either keep claiming the bad decision was a good one in the hope that something turns up, or eventually resign or get voted out. But if they ever dare to publicly change their point of view in the presence of new evidence, they are accused of the worst crime a politician can commit. They are a "flip-flopper."

s/politicians/coporate exec/ is just as true.