How come there has never been a retired referee as an announcer?

[CRedskinsRule]

Also, remember most (if not all) refs have other professions on going, and I don't think they have the short nfl career span that most players, or even coaches, that go onto broadcasting do. Look at Jeff Triplette's Wiki I don't see him being in any quick hurry to go in the booth:

Triplette is a retired Army Reserve colonel. He was awarded the Bronze Star for actions in the Persian Gulf War while serving in the North Carolina Army National Guard.

In January 2007, Triplette was named President and Chief Operating Officer of FNC, Inc., the provider of collateral management technology to the nation's largest mortgage lenders. Before joining FNC, he was Vice President for Risk Management at Duke Energy, a large energy company headquartered in Charlotte, North Carolina.