This show was written like it was parceled out to different writers.
The Sue/Becky Grinch stuff was great. Brittany/Santa/Coach stuff was also great. I'm so glad they've broadened Becky's role. She does great as Sue's toady. I really wish they could broaden Dot Jones' character. She does good work.
The rest of it was just a mess. For example, every episode they keep mentioning how everyone hates the Glee kids. Yet they don't hate them enough to provide Rachel a band, Christmas trees, snowflakes, an auditorium, spotlights, etc when she needs to sing a cover song. In real life, if kids are hated, nobody helps them with anything.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.