There are enough and more articles, publications, university courses, seminars plus more covering the inherent nuances of what makes a good leader. Google search the word "leadership' and one will be inundated with a myriad of theories on what makes a good leader. Foresight and visionary aptitude, empathy, coaching and mentoring and integrity are all mentioned in one form or another.
Interestingly, technical ability does not even rate a token mention, perhaps because that is something that is taken as a given. But what of common sense? Common sense or street-smartness is the single most important pivotal criteria in the creation of a great leader.
Street-smart leadership
Obtaining technical knowledge, mastering a collection of facts and being taught what to do to solve complex problems, while a critical element, only provides one with factual information. There are enough and more sophisticated technology tools that provide a wealth of technical information.
"Knowledge is knowing that a tomato is a fruit."
Obtaining an enquiring mind coupled with the know-how of how to process the data and putting it to effective use is common sense.