The Los Angeles Chargers have just picked another massive weapon from the Michigan Wolverines. Two years after signing Jim Harbaugh from Ann Arbor, the franchise has hired another key staff member from the program, who previously served as the program’s director of football operations. According to Alex Insdorf, the Chargers are reportedly set to hire Erin (Dunston) Zernechel as Manager of Football Operations. The Wolverines confirmed her depart…