"Organizations rarely remove constraints that once protected them.
In a reliability improvement that shifts risk elsewhere, the room keeps asking for one more datapoint, as if it will remove responsibility. Meanwhile the calendar keeps committing you.
When the decision stays implicit, the system still commits—by drift, escalation, or whoever speaks last. You see it in a decision that drifts because nobody writes the boundary, where the first clear call happens after the cost has already been paid. Write it for the person who inherits it later, because they will not have today’s context or today’s goodwill. If you do not name the cost now, it will return later as rework, pager load, or a standard nobody can enforce.
Write the boundary in a way someone can enforce without asking you. That is how you keep pressure from rewriting the decision. Let the boundary do the work.