Why Hire Carville and Begala?

I saw this story the other day, that celebrity Democratic campaign consultant Paul Begala and James Carville will join the Hillary Clinton campaign in a day to day advisory role.

For those of you who don't remember, these two men orchestrated the Bill Clinton win in 1992, so 16 years later, here they come again for another Clinton.

I am not sure this is such a wise idea--if you are trying to paint yourself as a "change" going back to old tricks surely is not going to work.

Of course, this move was announced on NH primary day when the results were in doubt.