After three years as president of K2 Sports, John Colonna has been named president and CEO of K2-MDV Holdings. He will be responsible for the Marker Dalbello Völkl (MDV) and K2 Sports businesses, overseeing the global presence of the K2 Skis, K2 Snowboards, Marker, Dalbello, Völkl, Ride Snowboards, Line Skis, ...