Optionality: In addition to "letting things resolve themselves", one benefit you can sometimes get by deferring a decision (esp a "one-way door" decision) is optionality (of learning information that might result in a better decision).
Waffling: On the other hand, if you are a manager or decision-maker on whom others depend, one of the worst things you can do is waffle on a key decision (ie, be indecisive). Andy Grove has a paragraph on this in High Output Management as one of the highest negative leverage things a manager can do to their team, and in fact, often a wrong (but correctible) decision is far better than no decision.
Good managers instinctively know how to navigate these tradeoffs.