Rick Spielman, during his time with the Minnesota Vikings, hired three head coaches: Brad Childress, Leslie Frazier (initially as an interim after Childress was fired), and Mike Zimmer. Zimmer’s tenure was the longest and likely the most successful among them, but tensions between Zimmer and Spielman reportedly grew towards the end of their working relationship. Former Vikings quarterback Kyle Sloter recently spoke on Matt Falk’s podcast, where he made a significant assertion regarding the dynamic between Zimmer and Spielman, indicating that their relationship became strained. In case you can’t…