Kerr, an assistant coach with Team USA for the 2019 FIBA Basketball World Cup, was on the sideline as Bogut helped Australia upset the Americans in an exhibition game Saturday.
"He is one of the best passing big men who has ever lived," Kerr told the Daily Telegraph. "What he did for the Boomers in that win against Team USA didn't surprise me. Andrew just seems rejuvenated to me. From a few years ago to now, he is playing better than he has in years."
The 2016 NBA Coach of the Year added: "But yeah, (Bogut returning to the Warriors) is something that I'd be into again."
Bogut left the NBA in April 2018 to sign a two-year deal with the Sydney Kings in order to be with his pregnant wife. He returned to the Warriors in March after the Australian National Basketball League season ended, but he remains under contract with the Kings for the 2019-20 NBL campaign.
"We loved having Bogues at the Warriors last year," Kerr said. "I think it was really good for him to play in Sydney. Part of that was just being home. It's a better lifestyle than the NBA."
The 34-year-old University of Utah product averaged 3.5 points and 5.0 rebounds across 11 appearances (five starts) for the Warriors during the stretch run of the 2018-19 NBA season. He played more playoff games (19) than regular-season contests as the Dubs' injuries began to mount.
Although he can still be a reliable frontcourt reserve, the first overall pick in the 2005 NBA draft said he wasn't interested in other teams when he signed with the Warriors.
"To come back to the NBA, for me, was basically Golden State or nothing," he told reporters. "But the fact it was Golden State—it was the kind of opportunity that I would be kicking myself if I didn't take."
It sounds like Bogut, who's averaged 9.6 points, 8.7 rebounds and 1.5 blocks in 706 career games in the NBA, could once again be a late-season option for the Warriors in 2020.