EXCLUSIVE: There is a change at the helm of Fox drama The Following. Lost alumna Jennifer Johnson, who joined the Warner Bros. TV-produced series  in June as executive producer/day-to-day showrunner, is leaving. She remains at WBTV, where she is under an overall deal and very well liked, and will focus on development. Instead of bringing in a new person two seasons in, which proved not to be the right creative fit for the dense, serialized drama, WBTV has opted to promote within. Writers Brett Mahoney and Alexi Hawley have been upped to executive producers. They will co-run the Kevin Bacon-starring dark thriller alongside director Marcos Siega, the series’ long-time on-set executive producer. The Following creator/executive producer Kevin Williamson had to give up day-to-day responsibilities on the show after two seasons to focus on his new series, CBS’ Stalker. He had recruited Mahoney for that show, but Mahoney will now return to The Following. Williamson previously made a similar transition from the CW’s The Vampire Diaries, which is now run by co-developer Julie Plec, to The Following. He continues to have oversight of The Following and is expected to remain hands-on involved in it.  Production on the midseason series is not affected by the showrunner change as it is still in the writing stages. Filming is yet to begin.