Companies have become much more likely to dismiss their chief executive officers over the last several years because of a scandal or improper conduct by the CEO or other employees — including fraud, bribery, insider trading, inflated resumes, and sexual indiscretions. Larger companies are more at risk than smaller ones, as are companies where the CEO has been in office for a long time, and companies where the CEO is also the board chair, according to PwC’s Strategy& recent CEO Success study.