Sheridan and Kendall (1992) acknowledge that two-tier boards clearly separate the legal obligations of executive and non-executive directors. Tricker (1984:198-197) sees two-tier boards as structures “ . . . with an absolute separation of supervision from executive management.” Cadbury (1995:66) indicates that supervisory boards are in the position “ . . . to take an entirely independent view of the actions of management, since there is no overlap of membership between the two boards.” Seen in light of a theoretical conflict perspective of board organization, the management board is in charge of the initiation and implementation of strategic decisions (decision management). The independent supervisory board ratifies and monitors the conduct of the members of management board (decision control). The separation of board roles in one-tier and two-tier boards is presented in table 3.3. The table indicates that one-tier boards combine several board functions such as the supervisory function and the management function of the board (Demb and Neubauer, 1992b), the service, the strategic and control roles of directors (Zahra and Pearce, 1989) and the performance enhancement role and the monitoring role (Hilmer, 1993).