Tatum's health is the one variable Boston's offseason couldn't address

The front office checked every box it set out to check. Paul George is here. Mitchell Robinson signed a three-year, $47.4 million deal to anchor the frontcourt. Neemias Queta got locked up long-term. Jordan Walsh and Ron Harper Jr. have extensions. The roster Boston envisioned in late June exists on paper. What it doesn't have yet is its best player at full health, and that matters more now than it did a month ago.

Tatum remains day-to-day heading into camp — no timeline, no clarity. That's a problem in any offseason, but it's a sharper one here, where the entire premise of the rebuild is a Tatum-George partnership that hasn't shared a practice floor yet. George is a player who has needed time and reps to find his footing in new systems throughout his career. Every day Tatum isn't available is a day that chemistry clock doesn't start.

Philadelphia made it worse. LeBron James joining Embiid, Maxey, and the newly acquired Jaylen Brown turned a strong 76ers team into something Boston didn't bargain for when it made the trade. The East looks different now. The margin for a slow start, for a rocky integration period, for a Tatum absence that bleeds into November — all of it has narrowed.

Camp opens soon. My read is that the next few weeks of Tatum injury news will tell you more about Boston's actual ceiling than anything else this offseason produced.