What exactly do you think is going wrong with the show? Here are my suggestions.
1.They've totally forgotten the narrative. There's supposed to be a wedding coming up, right? What happened to it? Also, Joey was rehired as Dr. Drake, right? But it was never alluded to again.
2. Rachel's personality is going from warm and kind to shallow and hard. Since when has her character supposed to have been promiscuous? She used to be sort of romantic.
- It's getting surreal, as in that candy scene.
4.There's too much emphasis on running or bike riding funny, or thinking a common thing is unique (cookies, furniture).
5. There's too much "gay embarrassment" plots,(like when Chandler sits on Monica's dad's lap.
I think they must return to the wedding theme, have all other plots tie into that (Maybe they could make Tag an usher or something?), and forget these stupid bike and jogging stories!