Labor consultants, union organizers, and attorneys use rules and regulations to gain control of organizing drives. Most employers oppose union plans for card check elections and employ tactics to insure secret ballot elections instead. If the union focuses on one division of the company, employment lawyers may disrupt such plans and dilute the vote by petitioning the National Labor Relations Board (NLRB) to include other divisions. If the union seeks to include foreman or "junior supervisor" positions in a bargaining unit to increase membership, the definition of what constitutes a supervisor under the NLRA will often be challenged by employment. Even the jurisdiction of the NLRB to oversee an organizing drive may be challenged. Delays can turn an organizing campaign into a protracted struggle, and according to Martin J. Levitt such battles are almost always won by management.