Ellison

-noun
1. a person regularly coerced into coaching youth sports.
2. individual of high intelligence that strives to slightly under achieve because over achieving would be too easy.

-adjective
1. being dominant
2. having an unrivaled grasp of common sense

-noun:
If we can't find someone to coach these kids, we'll just have to find an Ellison.
That looked remarkably easy; I bet he's an Ellison.

-adjective:
The world would be much better if Ellison decisions were more common.