Well, your question is not right, but it is very close to right.
Right question for business owner, who are the most important in business to run (VITAL important), and who are the least important.
Usually, investors consider, CEO as 80% of company cost, because good CEO have command of managers and hr's who are tightly coupled to him and could just hire all other need people from job market.
So, this could have slight differences in different industries, but mostly this mean, safest is CEO.
CEO usually have command of people for most important things (if he could not do himself, or don't want to do - accountant, hr, finance director, marketing manager, team-lead, in some industries could be lead architect and in some security).
All others could be changed to people from nearest college.
BUT! You should use this info with HUGE grain of salt, because, if some CEO consider somebody part of his core command, this mean, this human is really best fit for this CEO.
For example, I in my life seen tens of hr's, and may be 2-3 of them are really superstars, one even have very meaningful surname, translated to English as Ant :) And I have seen very few people, who spent so much energy to work.
And yes, this also mean, there are many companies, where just don't need superstars, they want moderate persons to do moderate work.
Right question for business owner, who are the most important in business to run (VITAL important), and who are the least important.
Usually, investors consider, CEO as 80% of company cost, because good CEO have command of managers and hr's who are tightly coupled to him and could just hire all other need people from job market.
So, this could have slight differences in different industries, but mostly this mean, safest is CEO.
CEO usually have command of people for most important things (if he could not do himself, or don't want to do - accountant, hr, finance director, marketing manager, team-lead, in some industries could be lead architect and in some security).
All others could be changed to people from nearest college.