-relentlessness
-lack of ego
-hungry to learn
-exponential learner
-someone I can completely trust
-someone who can be checked without hard feelings and who can check me
-interest and expertise in the main role(s) they will be covering
-someone I love being around
It boils down to a person who is trustworthy, wanting to be the best at whatever they do, committed to the vision/company to an obsessive degree and will push me to be better