The thing is, Ralph is 87 years old. He has seen how much the NFL is a coaches league. He wants a SB win more than anything in life. He'll pay for coaches, this time.
Also, TD has conducted 3 coaching searches (including Cowher). In those searches, he has interviewed former HCs twice. Thats it. Only Jauron and Fassel were former HCs interviewed.
Finally, in 2001, Fox was the 3rd best candidate behind Lewis and GW. GW actually had a higher national profile due to the success the Tenn D had with a young Kearse, the exciting SB against the Rams and the use of the 46 D. Fox was simply Giants DC, who coached the D in a suprise SB run. But they got trounced and he faded.
So who's really at fault here?