I've seen a few shows go through this kind of death phase, and have always been curious about the internal writing dynamics that leads the team towards these bi

I've seen a few shows go through this kind of death phase, and have always been curious about the internal writing dynamics that leads the team towards these bite sized episodes without an overarching story line of interest. Especially because it seems like such a staple of good shows to have an overarching story, then a few concurrent story lines, with a final dose of single episode dynamics. I'd think they have to know they are breaking away from an established successful formula and instead trending towards the show being cancelled, I just wonder if its on purpose, or they just can't get the good writers back, producers meddling, or what.