It's a gotcha question to ask you which coach meets your standards? But yes, I do think it's odd that you dismiss what one coach did because he did it over 10 years ago, but want to hire a coach who has never done anything. In either case, you are betting on the unknown and taking a risk. Although it's arguably less of a risk to go with a guy that has done it before and has had success in his recent past even if it's not the level of success you would like.
But, I wouldn't have a problem hiring Glenn or Brady. In fact, I would probably prefer Glenn despite him being a defensive coach.
At the same point, I get the idea of hiring McCarty because he has done it before and shown that he is a consistent winner.
And I frankly think it's strange that anyone would dismiss either strategy as completely wrong. Both have their upside and downside.