The goals of this strategy would be: (1) let Southern voters know that Obama understands their unique concerns; (2) show all of America that he has no fear of the South; and (3) most importantly, provide contrast with Hillary.
We all know that Hillary can't run everywhere, especially in the South. If Obama runs a highly publicized campaign in the Southern states, he will show the entire country that he has appeal everywhere, while at the same time demonstrate Hillary's weaknesses.
Go South, young man, go South.