Revolving Door:Cassie Heiter is heading to WFAA 8 Dallas-Fort Worth from News 9 KWTV Oklahoma City where she has been a meteorologist for 10 years. Mike McGuff has the story.From TribLive: WPXI announced morning anchor Gordon Loesch will succeed long-time Channel 11 anchor David Johnson, who retired last month. Loesch will anchor alongside Lisa Sylvester during the 5, 6 and 11 p.m. WPXI newscasts beginning Jan. 20. He’ll also co-anchor at 6:30 p.m. with Liz Kilmer and at 10 p.m. with Sylvester on WPGH, Channel 53.Anchor/reporter Faran Fronczak has joined the…