So which is it? Coaching or talent?

[fifteenth]

Answering the initial question. What happened at the deadline? What should have happened earlier. Addition by subtraction. Getting rid of KP unleashed the quick and versatile small ball lineups. Quick and versatile. Switch heavy. No more drop defense in the pick and roll. No one clogging the paint. Better perimeter defense. Better spacing.
Not to mention that it looks like the chemistry is better than ever. No shot hunting. No one complaining about the lack of touches.

Anyone that needs a reminder of the KP era just needs to watch the Jazz defense. Trying to defend the perimeter with Gobert and Whiteside at center. Giving up wide open corner 3s all game long.

+ 1 billion