Love the Beatles, love all the music, but the soundalikes on Glee left me cold. I thought they were very perfunctory, corny, and added nothing to the genre. I think the Glee producers are desperately flailing at trying to put energy and life into the show, which is not gonna be easy with one of the leads dead of an overdose.
I think nothing short of introducing 7 or 8 new (much younger) characters could help. And forgive me, but I'm tired of looking at "high school kids" who are close to 30.