"Too critical to roll the dice"

Who do Republicans have to run against Obama in 2012? Contentions asks the question, and finds the quest worthy.
There is unease that those who are running are deeply flawed (either hobbled within the party or not viable in a general election) or unexciting, while those most attractive aren’t interested this time around (e.g., Christie, Marco Rubio).

To a large degree, the concern is premature. If 2008 showed us anything, it was that an early start, high name recognition, and gobs of organization don’t necessarily mean all that much two years before the first primary. Otherwise, Giuliani or Romney would have been the last nominee. But the concern among Republican activists is a healthy sign — a recognition that electability, personality, experience, and ideology must all be balanced and that this is a very critical election, too critical to roll the dice on a shaky candidate.
Of course, throughout the 2010 campaign, Democrats crowed that the Republicans were not well-liked. That didn't save the Democrats, and might not save Obama in 2012.