By Wilton Jackson Minnesota has been operating in a very “business-like fashion.” View the original article to see embedded media. Since Michigan football coach Jim Harbaugh began discussing his potential of returning to the NFL as a head coach, his future with the Wolverines’ program has been a widely discussed topic. Harbaugh, who interviewed for the Vikings head coaching vacancy on Wednesday (National Signing Day for college football), has legitimate interest in being Minnesota’s next coach. However, according to Sports Illustrated’s Pat Forde, he was not sure if he would accept the Vikings…