Boston Celtics wing Jaylen Brown gave up more than perhaps anyone last season -- taking on a bench role with no public complaints and thriving in the second half of the year after returning from a hand injury.

Still, a good attitude didn’t blind Brown to the team’s struggles. On Monday, after Team USA’s first practice in Las Vegas, Brown -- as transcribed by NBC Sports Boston’s Chris Forsberg -- offered a pretty direct criticism, although he avoided naming any names.

“Last year, honestly, I can’t see it being any worse than that," Brown said. "Coming out, being positive is everybody’s mindset.”

Jaylen Brown asked about good summer vibes around Celtics.



"Last year, honestly, I can’t see it being any worse than that. Coming out, being positive is everybody’s mindset."



Didn’t want to get into dysfunction.



"It’s over with now … looking forward to what’s coming next." — Chris Forsberg (@ChrisForsberg_) August 5, 2019

The Celtics in Las Vegas -- Brown, Jayson Tatum, Marcus Smart and Kemba Walker -- all seem to be enjoying the chance to spend time together both on and off the court.

Whether that chemistry carries over to the regular season remains to be seen -- multiple players, coaches and executives from last year’s team have suggested that the roster was full of guys trying to make it work but struggling to do so. Off-court chemistry can’t always fix on-court problems.

Still, between Team USA and a cohesive group of rookies at Summer League, this year’s team is off to a good start from a positive-vibe perspective.