I came here to make this point. Indiana and Sacramento are 0.2 assists apart in that department. Who's to say what the flow would look like with Brown and Hali vs. Fox? Sacramento is 3rd in offensive efficiency, and Indiana is 11th.
The ball moves a lot better AS A TEAM, than it would with one person responsible for setting everyone up. It's all about what you want your offense to be structured like. From a fantasy sports perspective, sure, I want one guy dishing the ball, as long as that guy is on my team, but from a coaching perspective, I definitely want the ball moving.
I do think Brown is (at least partially) responsible for getting into Fox and maximizing his potential. I think for a defensive-minded coach, he's actually made the offense look a lot better than it has in years, and that a more efficient/effective offense also creates positivity on the defensive end. That said, Indiana's team defense is statistically better than Sacramento's, and I'm curious to see how things shake out, because it seems that the bulk of their defensive success comes from blocks and steals.