The board should have a balance of skills, experience and diversity of perspectives appropriate to the requirements of the issuer's business. It should ensure that changes to its composition can be managed without undue disruption. It should include a balanced composition of executive and non-executive directors (including independent non-executive directors) so that there is a strong independent element on the board, which can effectively exercise independent judgement. Non-executive directors should be of sufficient calibre and number for their views to carry weight.