Virtually no one is safe on a rebuilding team. Almost everyone on the roster is a potential trade chip, if that player can bring back a haul that nets the team even more potentially good players.
Sure, you’d like for the Phillies to be done rebuilding now, but the reality is that this rebuild, which is off to a very good start, still has a ways to go.
They are still many pieces short of contending, and there are no logical answers in free agency that would help turn the Phils into a playoff contender that doesn’t also block minor league prospects who could be ready for The Show in the next few months.