Wisconsin athletic director Barry Alvarez was also the head coach of the team the previous season in 2005. After 15 years of coaching he decided to step down as head coach of the football team and chose Bret Bielema to succeed him.[1]
In June 2006 Northwestern head coach Randy Walker unexpectedly died when he suffered an apparent heart attack. Northwestern alum and linebacker coach at the time Pat Fitzgerald was named his successor. The hiring made Fitzgerald the youngest Division I-A at the time of the hiring.[2]
Following a disappointing season in which his team went 7-5 Lloyd Carr promoted defensive backs coach Ron English to defensive coordinator.