Even if you just want to chalk it down to a Freudian slip, the phrase "Having a coach, a really good coach is probably the most important thing in this league." is an oddly specific thing to say off the top of you head when you spend as much time as Durant thinking about your impending free agency.
I'd argue that "No matter how many moving parts they have on the team, he always stays consistent with what he does" describes Brad Stevens to the letter.
How about
"They’ve got great players, but they also have a great coach to put them in positions that utilizes all their strengths as individuals and make it come together as a team."
Current Chinese Basktetball player Jordan Crawford was Eastern Conference player of the week under Stevens. Former "difficult to fit into an offense" player Isaiah Thomas is an Eastern Conference All Star. Crowder, Jerebko, even Zeller to an extent have all reached new heights in their careers under Stevens.
Durant said earler this year said something to the effect of his team was never going to pass it fifty times on a possession. While we have great ball movement our players are also encouraged to take the shots that come to them. KD would be a close to ideal fit in Stevens' system.
Think I've raised my take on our chance with him from, fun-to-think-about-but-unlikely to cautiously-optimistic-about-our-outlook.