I think the series' problem arises from different desires between the producers and the viewers. They've stated they wanted to make it very "episodic." IE, each episode a self contained story. We see a lot of that when the viewership starts dropping down. The series gets into these dramatic character stories that are self-contained and don't propel the overall arch or series along. This is what the producers wanted for the show. This doesn't seem to be what the viewers want. They want Galactic and the Cylons. They want that particular story to grow and change.