Coach and Four is a barber shop at 806 South State Street. Jerry Erickson is the barber.

In the news

Buzzing About Jim Harbaugh While Cutting Hair in Ann Arbor – New York Times, Sept. 11, 2015

Barber says U-M ready for style change – Detroit News, December 2007

So Jerry Erickson, the barber to a who's who of Michigan sports figures (athletic director Bill Martin and hockey coach Red Berenson, to name a couple), fully endorses the style change to Rich Rodriguez.