...located in this story: http://www.omaha.com/huskers/football/shatel-barry-alvarez-aimed-to-coach-at-nebraska-but-is/article_1f47503d-adf9-5913-a1f0-7457bb9969a9.html.
He apparently wanted to be HC here after Tom stepped down, but the job was already promised to Frank. Ironic, because Alvarez also claims he wanted Frank to be his OC at Wisconsin, which Frank accepted until, (you guessed it), Tom told Frank he wanted Frank to be the HC here after Tom retired.