What's Missing From the Democratic Convention?

As one would expect them to be, virtually all of the prime-time speeches at the Democratic Convention have been -- from a rhetorical perspective -- very well-crafted and well-delivered. Bill Clinton's speech, in particular, deserves all the plaudits it is receiving, both in terms of content and delivery. But as competent, well-executed and even dramatic as the Convention has been, at least as striking is what has been missing.