On April 3, 2008, after seven seasons with the show, Gough and Millar announced they would be leaving Smallville. The developers, after thanking the cast and crew for all their hard work, acknowledged they never stopped fighting for what they saw as "their vision" of the show. A specific reason for their departure was not given. On March 26, 2010, The Hollywood Reporter revealed that Millar and Gough, alongside co-producer Tollin/Robins Production, had filed a lawsuit against Warner Bros. and The CW. The lawsuit contests that Hollywood's "vertical integration" cost the pair millions of dollars. The suit claims that Warner Bros. failed to "maximize profits" while marketing Smallville, misrepresenting production costs, and selling the show in foreign markets at "well below the value of the series". At this time, the lawsuit does not specify how much the plaintiffs are looking for in compensation. On February 6, 2009, after only one season, the L.A. Times confirmed executive producers Darren Swimmer and Todd Slavkin would not be returning for a ninth season of Smallville; instead, the pair would take over The CW's new series Melrose Place. The Times also reported Kelly Souders and Brian Peterson would continue on as executive producers when Smallville starts its ninth season. On July 24, 2009, it was announced Tom Welling had become a co-executive producer of the series. As credited in a May 20, 2010 press release by the CW, Welling has become a full executive producer for the tenth and final season of the series.