Jerry Punch is very loyal to ABC and ESPN. When ESPN lost their rights to broadcast the races, everyone, with the exception Punch, left to go to the other networks. Jerry said that they have been very good to him and he didn't see any reason to leave them. I don't know all the particulars, but it seems to me that Allen requested to do the pit work, and Jerry, having done the booth work before, was the perfect candidate for that job. I always liked Jerry in the pits from way back. It even was a sort of Godsend when Rusty rolled his car at Bristol one year. Jerry was the first one on the scene, and as a doctor, he knew what to do right away.
As for Allen, I like him better on the radio than on TV, but that's just my opinion. Liked Eli as well, but hell, I really liked Larry Neuber too.