FILE - Golden State assistant coach Kenny Atkinson, serving as head coach, reacts during the second half of an NBA basketball game against the Utah Jazz, Monday, Feb. 12, 2024, in Salt Lake City.The Cleveland Cavaliers are hiring Golden State assistant Kenny Atkinson as their new coach, a person familiar with decision told the Associated Press on Monday, June 24. (AP Photo/Rick Bowmer, File)

CLEVELAND (AP) — Kenny Atkinson’s first stint as an NBA head coach ended with a sudden, strange separation in Brooklyn.

He’s hoping for a longer-lasting relationship in Cleveland.

The Cavaliers finalized a five-year contract on Friday with Atkinson, who spent the past three seasons as an assistant with Golden State and now takes over a Cleveland team coming off its second straight playoff appearance.

In choosing the respected Atkinson, the Cavs ended a monthlong search that began after the firing of J.B. Bickerstaff, who led the team to 99 wins the past two seasons. Bickerstaff was let go after Cleveland lost in five games to Boston in the Eastern Conference semifinals.

“Kenny brings a wealth of experience, a proven track record of player development, and a relentless work ethic that aligns with the vision we have for this franchise,” said Koby Altman, the team’s president of basketball operations.

“His familiarity coaching alongside some of the NBA’s best elevates this partnership and we are excited that Kenny will guide our team and help us achieve our goals both on and off the court,” Altman added

The Cavs plan to introduce Atkinson — the franchise’s 24th coach — at a press conference on Monday.

“This is an incredible opportunity to lead an already talented young roster with an equally bright future,” Atkinson said in a statement. “I’ve seen firsthand and had to prepare for this group as an opposing coach, and the task was not easy. I’m so excited to now be on this side of the ledger to help continue moving this team forward.”

There was a delay in Atkinson signing his contract because he was in France helping its national team prepare for the upcoming Paris Olympics. He’ll be back in Europe next week for exhibition games with the French team.

Atkinson arrived in Cleveland on Wednesday and was in the team’s draft room when the Cavs selected Cal forward Jaylon Tyson with the No. 20 overall pick.

Atkinson’s hiring is another significant move in a pivotal summer for a Cleveland team that believes it has the necessary roster to compete for a championship. The next step — and perhaps the most important — is getting All-Star guard Donovan Mitchell to sign a long-term contract, which he is expected to do.

The 57-year-old Atkinson is a safe, sound pick by the team’s front office and chairman Dan Gilbert, who hasn’t always handled coaching searches with aplomb. Gilbert’s outside-the-box hires of first-time NBA coaches David Blatt and John Beilein backfired badly.

Atkinson is far less risky.

He has the resume, highlighted by offensive success and a reputation for developing players.