Attorney Larry Weiner represented Cromley (plaintiff) in a civil rights action against the Board of Education of Lockport Township High School District 205 and several of its employees (School Board) (defendant). The Scariano law firm represented the School Board. After representing Cromley through two years of pretrial litigation, Weiner accepted a position with the Scariano firm. Cromley moved the district court to disqualify the entire Scariano law firm from continuing to represent the School Board in the civil rights action. The district court denied the motion, and Cromley appealed.