I don't know how many terms Huntsman and Johnson have had, but they're not going anywhere so far. That leaves Perry who won't get anywhere just for his comments about the border and illegal immigration, IMHO.
Instead, they latch onto a gadfly congresswoman and a franchise restaurant operator who couldn't win a GA primary.
Cain was also chairman of the Federal Reserve Bank of Kansas City. How many blacks have won statewide elections in Georgia? Racial/ethnic voting patterns can't be ignored.
Cain will fade. Perry better suddenly become a motivated, coherent politician, or else it'll be Romney.