The Lansing Lugnuts announced they have sold the naming rights to their baseball field, just weeks after selling the new naming rights to their ballpark. That means the stadium, formerly known as Oldsmobile Park, now is Cooley Law School Stadium. But the actual baseball diamond will be called Jackson (National Life) Field. According to an article in the Lansing State Journal, it's somewhat rare for a team to sell naming rights for both the stadium and field, said Bill Sutton, a professor at the DeVos Sport Business Management program at University of Central Florida and president of the nationwide Sport Marketing Association. "The field is usually reserved for an athlete or coach who's had an impact there, so that's why this is such a radical departure," he said. Will "Ernie Banks Field" at "Ricketts Park" be far behind for the Cubs?