Does the Colt's hiring of Caldwell violate the spirit of the so called Rooney Rule? ?

If the Rooney Rule requires interviewing a minority candidate, and you interview and hire one and the same, I don't see how this would be a problem. The rule does not state you have to interview a specific number, including both minorities and non-minorities. If you interview and hire a non-minority candidate and DO NOT interview a minority candidate, then the rule will have been broken.