I have seen nothing in the past few years to make me think that George W. Bush may not listen to my sage advice.
...let me just add what the real point is. Let's assume that Biden is right - do what he says, and things will improve. The corollary to that is if we don't do what he says, things won't improve. The probability of the Bush administration taking advice from Joe Biden is about 0. So what Joe Biden should understand is that lots more American soldiers are going to die while he sits around and waits for Bush to take his calls. And, then, a year from now he can give the damn speech again, perhaps with an "I really mean it this time" tacked on. Rinse, repeat.