Few assistant coaches saw a bigger season-to-season jump in our informal poll than Charles Lee, 35, who’s in his sixth season working under Mike Budenholzer in Atlanta and now Milwaukee. Fans of Lee, who played professionally overseas before spending a couple of years as an equity trader on Wall Street, tout him as a five-tool coach who is every bit as comfortable having meaningful conversations with a backup point guard as he is dining with a team owner. Those who have worked with him say he has an intuitive sense of how to inspire improvement from players but also understands high-level strategy and the preparation required to implement it. He is, in the words of one peer, someone who is “categorically going to be an NBA head coach.”