OWINGS MILLS, Md. — The cliches and jargon has been tossed around since the Ravens began training camp after releasing veterans Derrick Mason and Todd Heap in late July. The passing game will be a work in progress, but the talent is there, they said. The Ravens acquired veteran Lee Evans halfway through the preseason to provide a vertical threat and add experience to a very young group of receivers led by veteran Anquan Boldin. Evans, however, has been stricken with a left ankle injury since the third preseason game and hasn’t played since Week 2. In his absence, Baltimore’s rookie receivers have collected just 11 receptions in five games, good for only 40.4 percent of quarterback Joe Flacco’s 89 completions this season. Ravens wideouts accounted for 50.9 percent of Flacco’s completions last year when Mason, Boldin, and T.J. Houshmandzadeh occupied the top three spots on the depth chart. Despite the light production from the rookie group of Torrey Smith, LaQuan Williams, and Tandon Doss, the coaching staff still claims they’re seeing development through the first five regular-season games, even if it hasn’t translated on the field. “Just tremendous growth,” offensive coordinator Cam Cameron said. “Again, we get to see
