Callahan Adds KFRG: Entercom KSON/San Diego OM/PD Kevin Callahan has added programming responsibility for sister KFRG/Riverside, filling the vacancy created by the departure of Scott Ward (CAT 6/5). Callahan now has programming oversight for all of the company's Southern California stations and continues as OM for the five-station San Diego cluster. "His vast award-winning industry experience and leadership in audio and marketing innovation will help raise the bar for our team," says Riverside SVP/MM Michael Valenzuela. Callahan adds, "I’ve been fortunate to oversee programming efforts for 103.7 KSON and I look forward to taking K-FROG to new heights in the next chapter of my career." Reach him here.