0 a form of expression (not using ’like’ or ’as’)in which a quality or characteristic is given to a person or thing by using a name, image, adjective etc normally used of something else which has similar qualities etc -- métaphore
The football metaphor is of no use to us here, ladies and gentlemen: in order to make progress intelligently, the team needs to be mixed.
For once, the metaphor is entirely apposite.