The North Little Rock School Board is interviewing candidates for its superintendent job. It began the process yesterday by interviewing its own assistant superintendent for desegregation, Bobby Acklin. Acklin has held that post since 1994 and was assistant superintendent for student affairs for five years before that. The district must replace Superintendent James Smith, who is leaving at the end of June. The North Little Rock board will interview Paragould Superintendent Tom Kimbrell on Thursday.