The official landing page lets users choose one team, several teams or the entire league for 2026–27. Its operating-date setting determines signing amounts and trade eligibility. A roster proposal therefore needs a date as well as a list of players; the calendar is part of the scenario being modeled.
The stronger use of that workspace is to show the whole proposed sequence. If an argument depends on moving one contract before adding another player, the sequence belongs in the explanation. If a fan prefers extending a current player, that choice should be compared with the alternative being proposed instead of being treated as an isolated number.
Those are exercises in roster construction, not reports of team intentions. A workable-looking simulation does not prove that another franchise wants the same players or that an athlete would agree to a contract. It also does not establish that a rumored deal is being negotiated.
The governing rules remain the NBA-NBPA collective bargaining agreement. Smith's announcement describes the actions available in Spotrac's rebuilt tool, while Spotrac's landing page explains the team and date setup. Neither source announces a transaction.
For a fan debate, the value is a more specific proposal: who stays, who goes, which action comes first and when the plan is supposed to happen. The tool can help frame that discussion without turning a hypothetical move into news.