Power Ranking All 30 NBA Head Coaches Heading into 2015-16 Training Camp - Bleacher Report

The importance of a good NBA coach can be hard to decipher. And the line separating mediocre ones from the elites isn't always the easiest to quantify.

The job itself is often an all-guts, no-glory profession. Coaches are easy scapegoats when problems arise, and they're equally easy to overlook when it's time to dish out credit.

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