There's a reason that being the incumbent is an advantage. And I think that Daniels is brilliant for sitting quietly for awhile. As a friend said, the GOP needs to punch itself out on the silliness for awhile and then the more serious candidates can step in.
Meanwhile, it's good to be president. With his opponents determined to spend a year and a half telling each other why "no one" is worth supporting, turning off contributors and independent voters, Barack Obama floats below the radar vacuuming up campaign cash at fund raisers. Every GOP candidate's utterance is wholly political, but the Obama fundraisers and "policy speeches" are submerged in the presidency.