For Boston Celtics second-year guard Jaylen Brown, the blockbuster business that was the Isaiah Thomas–Kyrie Irving trade meant something more than just a change of playmakers.

The 20-year-old opened up about the Celtics' offseason splash which also sent Jae Crowder, Ante Zizic, and two draft picks to Cleveland, and he cited that the trade changed the “whole culture” of the team and put the definition of “Celtic basketball” into question.

“It changes the whole dynamic, the whole culture.” Brown told Adam Caparell of Complex Sports.

“We’ll see if it’s for good or bad, time will tell. But it’s still a little weird to me, to be honest, because when I came in everything they stressed was culture, environment, Celtic basketball. Now, it’s like what is the environment, the culture, what is Celtic basketball? I think it’s a great opportunity for me, great opportunity for the Celtics, great opportunity for Kyrie.”

Brown stated his admiration for Thomas as well, and he emphasized that he doesn't fully agree with the deal.

“Obviously, I loved Isaiah. He was like a big brother to me. I watched him, admired him, the chip he carried on his shoulder I love him. I still do. I’ve kept in contact with him. Congratulated him when he got traded to the Cavs. It’s tough because it’s the business we live in. Do I agree with it? Not necessarily. I think Isaiah definitely tried to plant his flag in Boston. He will definitely be missed—he and Jae [Crowder] both. And Avery [Bradley], too. Those three guys are truly going to be missed. I love them and I thanked all of them for helping me out and said I’d see them down the line.”

The UC Berkeley product has a good argument though as the Celtics gave up several key pieces of their squad which not only topped the East but also reached the conference finals last season.

Jaylen Brown's comment on the change of culture and a different environment also makes sense given that there are plenty of new faces on their team, including newly-signed Gordon Hayward, former Detroit Pistons forward Marcus Morris, and rookie Jayson Tatum.

As Brown said, it's still unknown how these changes will affect the team in the long-run, but there are certainly high hopes and a spirit of optimism as they got two All-Star players this summer.

Jaylen Brown's concern might be something now, though it should change when Boston starts living up to expectations.