At nearly a quarter of the biggest U.S. companies, a majority of the board has been in place for at least 10 years; in 2005, long-term directors made up a board majority at 11% of large companies. “Having some long-term board members is not bad in and of itself—but too many raises red flags about the board’s independence and succession planning,” says Scott Stringer, who oversees more than $150 billion in public pension funds as the comptroller for New York City. Read the original story from The Wall Street Journal.