He leaves behind an organization dedicated to nurturing new plays and playwrights; his replacement will be announced next month.
The company will move forward with an actor-led model intended to echo the production process of Shakespeare’s theatre.
Collette Appolito Laisure and Anita H. Cook, respectively, will step into the new roles.
Ortega-Murphy will succeed Maya Choldin, who stepped down in October 2020 to accept a position at Theatre Calgary.
Managing director Mark Folkes will step down in April, while Eboni Bell will be promoted to inclusion, engagement, and training director in February.
Linda Fortunato has been named associate artistic director, and will take over for Vinkler at the end of the 2021 season.
Katrinah Carol Lewis and Steve Perigard will share responsibilities for six months.
She will join the leadership team of Women of Color in the Arts.
Jarrett’s promotion coincides with additional leadership title changes in anticipation of new executive director J.S. May’s 2023 retirement.
The 45-year-old Pennsylvania theatre will also initiate a national search to fill out its senior artistic leadership team.