Missing a chance
Everyone knows how the Repooflicans pick their candidates. They don't use primaries and caucuses. Instead they have an Apostolic Succession. After each election, everyone knows who's Next In Line.
Why not turn this into an advantage? Don't insult our intelligence by going through the motions of "competition" and "campaigning" and fake "primaries" and fake "caucuses." Just declare officially on November 7, 2012 that Ryan is The Next Man In Line .... and then USE the fact by forming a Shadow Cabinet. Find the best people for each post, pay them to spend four years in training, and begin offering well-formed alternatives to everything Obama does in his second term.
This would be meaningful and attractive to voters, and would also help to shape Obama's actions by a counterbalancing effect.
What we really need, of course, is a complete return to a parliamentary system, much like the Articles of Confederation. Undo 1787 or even undo 1776.