Pairing a captain and executive officer with complementary skills

Is a ship simply lucky if it has both a good captain and a good executive officer?

The Royal Navy tries to pair officers whose strengths work together, including different strengths in warfare and personnel leadership.

A useful command pairing depends on how the officers' strengths fit together. A captain with strong warfare and technical skills can work with an executive officer who excels at personal leadership and managing personnel. Each then supplies skills that the other possesses less strongly. Michael Clapp's paper on command is suggested as one influence on the Navy's attention to such pairings, although the date is recalled imprecisely.