I stopped reading after this quote: • Introverted leaders led more successful teams when intuitively handling large amounts of information. • Intuitive leaders, in general, led more successful teams when they had to handle a lot of information.

"Introverted people tend to be more reflective, more introspective, they tend to be more observational than extroverted leaders," Sleesman said. "So pairing intuition with introversion tended to be very effective for team performance."

Did they actually measure people with the two traits combined, or are they just inferring that people with both traits will be better than people people with either trait alone?

This combined with another comment suggesting there are only about 200 captains at that base, casts serious doubt onto this result.