[Jeff Rodriguez]

The coaches are another set of eyes for the drivers.
The drivers should be focusing on your robot and getting their job done. The coaches should be looking at the other teams and helping the drivers react to the opposing alliance during the match. The coaches should also be coordinating strategy with your alliance partners during the match.
The coach needs to be able to react, think, and communicate very quickly. They play a vital role in your alliance's strategy.

At least, that's my philosophy.

There is no age requirment of the coach. They cannot, however, touch the controls at any time.