http://theamericanceo.com/2016/05/10/first-time-ceos-not-prepared-job-says-ceo-study/

These results are based on in-depth conversations with 75 first-time CEOs on everything from preparedness to biggest surprises to the best and worst parts of the job. The results were not surprising to The River Group researchers or to me. I have focused my efforts over the last few years on the premise that most first-time CEOs are not ready for the role. Based on the interviews – with chief executives on five continents with an average of 8,000 employees and $8 billion in revenue – here are 10 key takeaways and recommendations for first-time CEOs, which I agree with: