Technical know-how is a must. One must know how to operate the software.
A director should be most patient given the size of the ship he commands and the variety of its inmates.
A cinematographer should certainly have an eye for beauty, but beauty that strikes a balance with reality.
It's also important to maintain calm in the face of deadline pressures. There will be times when people around you will lose their cool, but the challenge is not surrender to these provocations
Knowledge or at least interest in the other skills involved.
The other thing is to cope with long and unpredictable hours.