Renda's going all-business on Pittsburgh's WPTT (1360) "We're going to become Pittsburgh's new sound of money", is the way Renda Broadcasting VP Alan Serena puts it. WPTT had just dropped late-morning talk host Lynn Cullen, and that was a prelude to a coming wholesale September 1 format change, from talk to business talk. Much of the new station will be based on the lineup of Business TalkRadio Network. Look for the calls to change from WPTT to WMNY, based on Renda's request to the FCC Media Bureau Call Sign Desk. Meanwhile, Cullen's progressive-leaning show - which had been WPTT's biggest revenue biller - is searching for a new home in the Steel City.