Celtics preseason lineup surprise doesn't actually mean anything (right?)

Boston Celtics, Joe Mazzulla, Xavier Tillman, Chris Boucher | David Butler II-Imagn ImagesMEMPHIS — The preseason means nothing. At least, not when it comes to rotations. “Zero,” Joe Mazzulla told Gary Washburn of The Boston Globe when asked about how much stock can be put into his preseason lineup decisions. “I’ll save you the time.”

The Boston Celtics are a completely different team from last year. Well, that’s not completely true. Jaylen Brown is ready to roll. Derrick White, Payton Pritchard, and Sam Hauser are still in town, too. But those four are the only remaining members of Boston’s core nine-man rotation from last season. (Jayson Tatum is still around, just recovering from a…