Salem-Louisville makes a GM change, with Tim Hartlage replacing Mark Thomas. What are the boards saying? ... Also in Louisville, Louisville Public Radio, which includes WFPK, WFPL, and WUOL, changes its name to Louisville Public Media ... In programming, Dan Thomas exits as director of programming for Tati Broadcasting in Anchorage ...PD/Morning man "Scotty G" Gorman exits top 40 WJMX (103.1) Florence, SC ... "Lil D" Derrick Greene, PD of Clear Channel's Columbus, Ga. urban duo, adds programming oversight of Columbus, Albany, and LaGrange, GA ... The weekend syndicated "Live in the Den with Big Tigger" welcomes presidential candidate Barack Obama as a guest this weekend.