What we do know about Boston is that they have a budding superstar in Tatum and a potential all-star in Brown, but other than that the team has regressed over the years.
Don't forget this was the team that without Kyrie took Cleveland to 7 games and nearly advanced to the finals in 2018.
The Kemba trade was a failure and they replaced him with Schroder, who is nice, but isn't going to get a team over the hump. Like our team last year, they lack a dependable big. Pritchard is a nice back up point guard with starter potential, but he isn't going to be a huge game changer night in and night out.
What people are failing to mention is that despite Tatum and Brown being pretty damn good individually, their offensive chemistry is not very good. They are a very iso-oriented team without a good facilitator offensively.
Ainge was one of the best GM's in the league for the past couple decades and Stevens was recognized as a great coach. It's going to be a change to have Stevens, with no GM experience, suddenly take on that role and stop coaching the team.
So yes, Tatum is a fringe top 10 player, but what does that mean if the Celtics fail to build a solid and cohesive roster around him. If they are a middle of the pack team for the next 2-3 years, he may want out. We saw guys like AD leave the Pelicans, CP3 leave the Pelicans/Hornets, George leave Indiana, Harden leave Houston, Butler leave Chicago etc etc.