Could "good guy" Don Tollefson be saying "good-bye" to WTXF? According to an industry insider, WTXF management, led by new general manager Robert Simone, is "looking hard for a replacement for Tollefson," the station's weeknight sports anchor since 1998. A station source also noted that Tollefson has recently been giving cryptic references about possibly leaving the station. Tollefson, formerly of WPVI, began at Fox eight years ago. Known as much for his charitable endeavors as his sportscasting, he was criticized for not showing up to the station in time to report for the WTXF "Ten O'clock News" after the Eagles NFC Championship game loss to Tampa Bay in January. Sources say that Tollefson has clashed with news director Scott Matthews over what he can say on the air about his charities. Repeated attempts to contact Tollefson were not successful. Missanelli: Time for a change Bristol native Mike Missanelli, who has already done stints as an attorney, newspaper journalist, sports radio talk show host and television sports anchor, is ready for the next chapter in his life - wacky radio morning man. Missanelli recently signed a deal to do the morning show on WMMR 93.3-FM. Asked why he would leave his comfortable position as the mid-day co-host on WIP 610-AM, Missanelli replied: "That's exactly why I would leave. I was ready for a change, and it was time to re-energize." Missanelli will join fellow WIP exile Joe Conklin to do the 5:30-10 a.m. shift, along with WMMR holdover Vinnie the Crumb. Though the show stars three "sports guys," Missanelli said, "anybody that ever listened to my show knows that I can talk about more than sports. This will be a Philly morning show, with guys from Philly. We'll talk about music, events, politics and more." WIP morning star Angelo Cataldi said of Missanelli's departure: "It's a big loss for the station. Mike is a talented guy." Since the beginning of the year, WIP has lost Missanelli, Conklin and general manager Butch Forster. The front-runner for Missanelli's job seems to be fill-in Steve Martorano, who worked with remaining mid-day host Anthony Gargano last week. It's unlikely that former mid-day host Glen Macnow, who was moved to evenings, will be reunited with Gargano. It will be interesting to see if the WMMR morning show can put a dent in the ratings of WIP, since it doesn't look like ESPN Radio 920-AM can. The affiliate, which only can be heard in some parts of Philadelphia and Bucks County, did not register in the top 30 stations in the recent Arbitron ratings. Cataldi wasn't surprised. "We learned many years ago that Philadelphia is only interested in Philadelphia sports," he said. Sounds of silence Though it looks like the Phillies have improved on the field, the same can't be said on the radio with the "cracking of the bats" on WPEN 950-AM. In the second year of a three-year deal, WPEN continues to frustrate fans listening to the games at night. With the team's spending spree over the winter, it would have been nice if it could have bought out its radio deal. Meanwhile, the Phillies' opener did well for KYW-TV with a 7.2 rating/12 share for a total of 203,794 households. Four on the floor Jim Nantz, Billy Packer, Bonnie Bernstein and Armen Keteyian will be the announcers for the Final Four games Saturday in New Orleans. Dick Enberg and Lesley Vissers will be contributors. Clark Kellogg and Greg Gumbel will man the studios with Michigan State head coach Tom Izzo. Not invited to participate was Kareem Abdul-Jabbar, who got better notices for his performance in "Airplane" than for his broadcasting stint. Expect it to be "one and done" for the former NBA legend. Laura Nachman covers television and radio sports for the Courier Times. She can be reached at bradyresident@aol.com. April 4, 2003 7:07 AM