Learning from experience, whenever you see a mistake, even one that is blantantly obvious, don't bring it up. Being new, it's not your place even if you're the only one to notice it. Chances are, you may not be the only one but even if you are, the new person is never supposed to say anything less you shorten your time span there. This is something one learns from first hand experience so when I saw this post, it brought back such memories. Silence is often truly golden.