By TOM SHANAHAN MSUings on the Spartans’ 37-20 loss to Rutgers to open the season and the Mel Tucker era on Saturday at Spartan Stadium. Rutgers, a Big Ten doormat since joining the conference in 2014, ended a 21-game losing streak in conference games. Note: Reaching back to my notes header from my days as the State News sports editor. The Spartans turned over the ball seven times, the most in a game since 1981. PICKING UP WHERE…