OAKLAND -– And on the fifth day of a training camp defined by its rough edges, Steve Kerr went "old school" on the Warriors.
The rookie coach got a whistle, put it around his neck and used it during practice.
"I felt like I had to put it on," Kerr said on Saturday. "I didn't have it on the first four days. We needed a little more focus today. The whistle helped."
Kerr and his assistants were so disappointed with the scrimmage on Friday night they used video clips to illustrate certain points to the team. The quest for more consistent ball movement has resulted in more turnovers than anyone would like.
And more than Kerr is willing to accept, even at this early stage of camp.
"I come from a background as a player where I was coached constantly on the importance of the details, including simple two-hand chest passes," he said. "I used to watch Michael (Jordan) and Scottie (Pippen) in Chicago for 10 minutes, (making) two-hand chest passes back and forth, with (assistant coach) Tex Winter barking in their ear.
"That's what it takes. If we're going to cut down on our turnovers, we have to practice our passing. We have to practice our execution."
Maybe the whistle did help.
"One of the points of emphasis from the coaching staff has been trying to cut down on turnovers," forward Draymond Green said. "We're doing a better job of that each day. The energy was more consistent throughout the entire practice. The things that we really wanted to focus in on going into the practice, we were a lot better on.''
FOCUS ON THE BIG MEN
Backup center Festus Ezeli has not worked out since Thursday and will remain sidelined until late next week -– when he'll be reevaluated -– at the earliest.
Though Kerr sounded slightly concerned about the absence of someone who figures prominently in the team's plan, he showed zero indications of desperation for getting another big man in camp.
He's going to work with what he has behind starter Andrew Bogut: Ognjen Kuzmic and backup power forward Marreese Speights.
"I'm happy with Mo and Kuz," Kerr said. "They're very different and they bring different skill sets. Mo helped the team quite a bit last year. He brings more an offensive, jump-shooting mindset. And he's in good shape. He came into camp in much better shape this year and his effort has been really good. He can play.
"Kuz is really coming along. We're pretty high on Kuz. We think he can give us some minutes this year."
Meanwhile, it is safe to presume general manager Bob Myers is studying free agents on the market in hopes of identifying insurance.
CRAFT LEARNS ROOKIE LESSON
In an impressive collegiate career at Ohio State, Aaron Craft earned a reputation for defensive intensity and smarts. His smarts deserted him earlier this week.
The rookie guard walked into the team facility wearing an Ohio State backpack.
Big mistake. Huge mistake when Green, a third-year veteran from Michigan State, is on the premises. Ohio State and Michigan State are, to put to mildly, heated rivals.
"He came into the locker room with an Ohio State backpack," Green said dismissively. "I went straight to the store and got (all the rookies) pink backpacks. Tell them to blame Craft, coming in there with that 'O' on his back. Nobody wants to see that."
Well, Aaron, you asked for that one.
ANOTHER SHOOTER IN THE HOUSE
Having passed his physical received clearance from FIBA, veteran forward Jason Kapono officially joined the Warriors on Saturday.
Kapono took part in his first full practice, after which he participated in 3-point shooting drills with Stephen Curry, David Lee and Justin Holiday.
[RELATED: Warriors sign free-agent Kapono]
Kapono, 33, has not played in the NBA since 2011-12, and spent last season in Greece, where he averaged 7.6 points and 17 minutes per game.
Kapono now ranks No. 2 on the active list for career 3-point shooting percentage, behind only his new teammate, Curry.