No, you can just say "we're still figuring this out, but here is about what we're thinking". Leaving this question unanswered for a long time is a sign of badn

No, you can just say "we're still figuring this out, but here is about what we're thinking". Leaving this question unanswered for a long time is a sign of badness, though. It's important to resolve this quickly and move on to the real work.