Soft skills 

If you've got the vocational skills, you're of little help without the human skills. The soft skills, or rather real skills, can't replace vocational skills, but amplify the things you've already been measuring.

For instance, a team member with all the traditional vocational skills is the baseline. Add to that perceptive, charismatic, driven, focused, goal-setting, inspiring, motivated, deep listener, and you have a team member that will benefit the organization in exponential ways.