He currently serves as the managing director of the Wilma Theater in Philadelphia.
Whittington will step down from the North Carolina theatre at the end of the 2018-19 season, following a 20-year-long run.
The playwrights, both MacArthur fellows, will start at the university in the fall.
The author of ‘Having Our Say’ and ‘Execution of Justice’ will have led the New Jersey theatre for 30 years when she steps down in 2020.
Suilebhan, who currently serves as director of brand and marketing for Woolly Mammoth Theatre Company, will start next week.
The acclaimed director will succeed Darko Tresnjak to become the theatre’s sixth artistic director.
The producer will help lead the D.C. Jewish theatre.
The Little Rock native will begin the new post in August, taking the helm of the Rep after it briefly suspended operations.
Palmer, the founding artistic director of Oregon’s Bag&Baggage, will begin his new post in March.
After honing an engaged producerial approach at the Public Theater, she takes the helm of Baltimore’s Center Stage.