The Warriors have been winners during Steve Kerr’s entire tenure as head coach. But after missing the playoffs in two of the past three seasons, the nine-time NBA champion is shaking up the system. “I think we need to reimagine our way of operating, both on and off the court,” Kerr told NBC Sports Bay Area’s Kerith Burke on “Dubs Talk.” “I think you know we’ve had a formula here that has been wildly successful. Some of those values we have to get back to. I think we’ve got to tighten the ship a little bit, but I think we also have to change some things on the court.

“The game has changed quite a bit. It’s gotten faster, it’s gotten more spread out. I think how we practice and how we teach the players, film sessions, walkthroughs, detail. We’re undergoing some major changes in that regard, and that’s my message to the team on Day 1.”

Beyond a shift in coaching and mindset, Kerr preached cleaning up the margins. Golden State was sloppy with the basketball last season, ranking No. 28 in turnovers per game, a number that starts with the veterans.

Although Kerr...