I'm pro Ben Johnson because he ran the Lions offense the past 3 years, and that offense has been near the top of the NFL, averaging 33.5 points per game this past season.
In comparison, the Bears offense has scored over 33 points exactly 6 times the past 5 seasons (and they were a playoff team in one of those seasons!).
In addition, everywhere I've seen him, he looks like he just has his horsefeathers together, which is something sorely missed in this franchise in recent memory. Even the speech to the employees, which was fairly normal and straightforward, was treated like he was some kind of rainbow unicorn because the franchise has sorely missed any kind of quality coaching and head coach that just simply has his horsefeathers together.