Please answer the following question: Question: Who will Andy be running against for the position of sheriff in Mayberry? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Return to Mayberry Context: Fifteen years after television last visited Mayberry, R.F.D., former Sheriff Andy Taylor and his wife Helen return to their old hometown and happily reunite with many beloved family, friends and characters in rural North Carolina. With Andy's boy Opie, now married, on the verge of having his first child, the former lawman is ready to return to his roots. He decides to run again for Sheriff, then discovers his old deputy Barney Fife is campaigning for the job. But Barney already has his hands full with other professional and romantic challenges, including the appearance of mysterious lake monster and the culmination of his ongoing courtship of the long-suffering Thelma Lou. Andy works behind the scenes to help his friend and all Mayberry, including Gomer and Goober Pyle, Otis Crump and many other familiar faces.
A:
Barney Fife