There is never a one-size-fits-all approach to being a successful CEO - the context, both internal and external affects performance and suitability dramatically. That said, this is great research into what sets successful CEOs apart which I'd agree with. Common focus areas for our executive work are decision making, results-driven stakeholder management, adaptability and predictable consistency - all areas mentioned here which lead to success. Each individual and team will have their own starting point and preference, the key to success is knowing where you're starting from and creating your own plan to success.