Montgomery, Zak Exit WDSY: Longtime CBS Radio WDSY/Pittsburgh morning host Brian "Monty" Montgomery and producer Katie Zak have exited. Montgomery had been with the station for 23 years and his exit follows that of co-host Jimmy Roach in July (CAT 7/22). Zak was promoted to the producer position in January (CAT 1/28). No word on plans for the daypart.