One of the hottest topics in governance today is director refreshment. (No, that doesn’t refer to what your board members have for lunch.) Boards comprised of long-serving directors do, in fact, tend to be “pale, male and stale” – i.e., comprised of old white men. Self-perpetuating boards are less likely to be diverse, and there is increasing evidence that companies with diverse boards tend to perform better (the evidence demonstrates correlation rather than causation, but it’s still evidence). There is also a plausible argument that self-perpetuating boards are less likely to challenge long-standing assumptions and practices, leading to board (and corporate) stagnation.
Perhaps it’s a poorly kept secret, but companies and boards have been concerned about this for years if not decades. Even boards that don’t engage in much introspection are often aware that some directors do not contribute much. As a result, companies and boards have tried all sorts of devices to force board refreshment – term limits and/or age limits having been the most common. Unfortunately, these devices have not worked very well, perhaps because they may be inherently ineffective, and no doubt also because companies often move the goalposts – age limits are waived (because keeping director X is deemed to be “in the best interests of the company”, whatever that means) or creep upward, term limits force good directors to retire, etc. And so, corporate America continues to search for the right approach. Some companies have adopted extremely long term limits (15 years), and others have said that average tenure may not exceed X years, but it’s too soon to tell whether these or other newer approaches will succeed.