The person in charge of ongoing operations within a company is the chief operating officer, also known as the COO. This executive oversees operations like production, marketing, sales, research, and product development. 

It’s not uncommon for the COO to serve as the CEO’s right-hand person since they handle strategy and major business decisions. 

The COO also ensures the different business operations are running smoothly, makes daily decisions, coaches and mentors others, and works behind the scenes to make the CEO and company successful.