S3 Ep49: Who's really to blame for Astros late season tailspin?

After another weak offensive showing in Toronto, the Astros seem poised to lose a Division lead they've held for most of the season. But while the theme of the season has been the overwhelming amount of injuries, the lineup (outside of Parades) is pretty much intact down the stretch. So who's really to blame for the current state the team finds themselves in, and will it lead to wholesale changes in the offseason?