Ben Johnson knew what he needed when he hired Dennis Allen, and the Bears' defensive coordinator will have intangible value along with his schematic acumen.
For a first-time head coach, transitioning from coaching one side of the ball or one position to managing an entire football team can be a challenge. Ultimately, some coaches prove they just aren't suited to being a head coach, and others thrive upon making that natural progression up the ladder.
Time will tell where Ben Johnson lands on that success/failure spectrum.