http://www.salon.com/entertainment/tv/feature/2011/02/14/can_glee_save _itself/

What has really made Season 2 seem like a basket case, says Matt Zoller Seitz are the too many tribute episodes and the elevation of Sue. "The show's fixation on Sue Sylvester is a manifestation of that 'When in doubt, go weird' ethos," he says. "Sue is hilarious in small doses and her monologues are magnificent. But the more strenuously the writers foreground Sue, the less exciting and credible she becomes."

I think more of the episodes are focusing on Sue instead of Will and New Directions. The young, talented cast is what attracted me to Glee and if there's more emphasis on Sue, the show's ratings will go down.