Is it the general belief of recruiters and hiring managers that specific position related skills are most important in hiring for a vacant position?

OR

Does an individual's documented, demonstrated previous successes and their capacity and ability to think critically and solve tough problems, and contribute favorably to a cross functional team - serve as a stronger guiding principle in hiring a smart and capable individual over position related experience?

I opine - it is less important a person know all the granular details of a position - those can be learned - but that person has the mental capacity and emotional intelligence and leadership ability to figure it out; ask the right questions, engage subject matter experts; read; leverage available information in a relative short period to become effective at the job.

What say you?