Bob Wojnowski: Michigan would be foolish to let Jim Harbaugh leave, and he'd be foolish to go
![Bob Wojnowski: Michigan would be foolish to let Jim Harbaugh leave, and he'd be foolish to go](https://bloximages.chicago2.vip.townnews.com/gazettetimes.com/content/tncms/assets/v3/editorial/5/4c/54ca0210-b403-5cb5-9589-0c74ad4f54f3/63c22c725802c.image.jpg?resize=300%2C200)
DETROIT — It’s more complicated than the last time. It seems more adversarial, with higher stakes, as Jim Harbaugh re-engages in NFL speculation with no clear direction or intent. His latest dalliance, which included a reported two-hour virtual interview with…