The Office has jumped the shark

I found the first four episodes of this season of The Office to be distinctly worse than the best episodes of past seasons. The show is getting too weighed down by several long-running plot lines, none of which are interesting dramatically. (Jim and Pam's story was never interesting, and neither was the equivalent plot in the British Office.) Hopefully this is just a bad streak, but I think it's more likely that the show has just jumped the shark.