Abbott Elementary Rally Season 4 Episode 21 Editor’s Rating 4 stars * * * * « Previous Next « Previous Episode Next Episode » The Abbott community takes a stand for a real one. Meanwhile, Gregory finds his rhythm as interim principal. Photo: Gilles Mingasson/Disney As co-showrunner Patrick Schumaker hinted in an interview , Ava’s firing was a plot decision to illustrate “just how much the school and the people who really are the school mean to the community.” We love Abbott Elementary for its