Fenway Sports Group could be adding an NBA team to its roster. Oh, and also an NFL team, a WNBA team, a cricket team, and a second soccer team. Gerry Cardinale, the founder and managing partner of RedBird Capital Partners — which invested $750 million in Fenway Sports Group for an 11% stake last year — says adding an NBA franchise is “a real top priority” for FSG, with wishful thinking for the other sports teams mentioned down the road.