April 16 (UPI) -- Former Miami Marlins general manager Kim Ng was named commissioner of the Athletes Unlimited Softball League, the league announced Wednesday. Ng joined the league last summer as a senior adviser responsible for developing the new professional softball league. At least four teams will compete during a 12-city, 24-game league debut tour from June 7 to July 23. "Softball was my first love growing up, so it's both gratifying and humbling to be given this responsibility at such a