 During the 2008–09 season, it was announced that the Pittsburgh Jr. Penguins would join the CSHL for the 2009–10 season, bringing the number of teams to 13.The league returned to 12 teams for 2010–11, as the Dubuque Thunderbirds franchise folded to make way for the return of the Dubuque Fighting Saints in the United States Hockey League.On November 1, 2010, it was announced that the North American Hockey League would take control of the CSHL.