The original purpose of a board of directors was to manage the company at a strategic level. To do the job properly takes time and effort. Unfortunately, there is no limit to how many boards on which one can sit, and the quality of corporate governance at the board level has degraded accordingly. Allowing people to sit on multiple boards also breeds group think, conflicts of interest and back-channels for insider information. Interlocking boards are another way our economic system is gamed to favor the wealthy. We should restrict membership to a single board, leading to a greater diversity of qualified people in the boardroom.