Steve said the greatest people are self-managing. He also personally interviewed over 5,000 candidates to find them. Both halves are the system. Most people quote the first one and skip the second. Here's the math Steve actually believed. In a 1995 interview, he said the difference between the worst taxi driver and the best is about 2 to 1. Cook to cook, maybe 3 to 1. In software, the difference between the best person and the worst is "about a hundred to one or more." If you believe spread…