I think the problem with tthat speech as a political tool was that it didn't get to the "unity" aspect quickly enough.

It built up to it well for those who have the patience to listen to that kind of thing, but for many people, wanting the meat and potatoes there and then, it may have taken too long to get of the ground with the result that people have lost concentration when the important stuff came through.

The Battle cry was "change" - now it's "unity".

Genius in terms of taking the baton and running with it. Taking the worst of the situation and using it to his advantage.

Is it clear enough and resounding enough to do the job.

... hmmm ... I just can't call it either way ...