Preaches Of Cheyenne: Former Entercom AC KOSI/Denver PD Mark Callaghan has joined Clear Channel/Northern Colorado as OM of the seven-station cluster, and PD of Country KXBG/Fort Collins, Country KOLZ/Cheyenne, WY and Classic Country KIIX-AM/Fort Collins. He replaces Brad Hansen, who exited last month. Reach Hansen here. Before joining KOSI early last year (CAT 3/23/12), Callaghan served as OM at Townsquare/Fort Collins, where he also programmed Country KUAD. Congratulate him here.