The curtain has finally come down on the circus of Jim Harbaugh’s tenure as the head football coach of the University of Michigan Wolverines after winning the2023 NCAA Football Championship. With Harbaugh agreeing to be the head coach of the much-maligned Los Angeles Chargers, Michigan football is searching for its 21st coach in its 145-year history — there have been 15 since 1900. There had been incessant speculation he would bolt for the NFL after any of his nine seasons and now Harbaugh has finally left to chase his dream ofcapturing a professional as well as collegiate crown. He came close…