Julie L. Biehl, director of the Children and Family Justice Center at Northwestern’s Bluhm Legal Clinic, is adding even more to her plate: She’s now also the clinic’s assistant dean within Northwestern Pritzker School of Law.Biehl said she’s poised to take on the new duties along with the old ones.“I will rely on my amazing team of lawyers, social workers and staff at the center and the entire clinic,” Biehl said.As assistant dean, Biehl will back up Northwestern Law Dean Kimberly …