There are 75 days until the defending national champion Michigan Wolverines football team takes the field in the Aug. 31 opener against Fresno State. Each day until then, we’ll discuss current Michigan events, the upcoming season and/or take a look at a significant number that correlates with how many days remain until kickoff, whether it be a player’s jersey number, a year, a date, a score, etc. The Michigan Wolverines have an offensive line question to sort out with replacing all five starters from last year’s run to a national title. One of the spots up for grabs is at right tackle, where j…