Insider info from Reddit so take it with a grain of salt
Players actively hated Callahan. An exact quote from a running back on our team, "He thinks he knows football because he played Madden while his dad coached." I'm not sure if it was a closed or open session, but we had refs at training camp. The DB team overheard him have a 15 minute discussion explaining rules as if he was a child learning how addition works in math class.
Amy stormed out yesterday from her watch and said I'm not losing to Mike (Vrabel) with that coach. Give me ANYONE else.
It was an exciting 48 hours for me. I got texts from people in the room while James Franklin then Cally were getting fired