15. Art Shell
Shell is justifiably a Hall of Famer after winning two Super Bowls as a player. The eight-time Pro Bowler joined the Raiders’ coaching staff after he retired. This was a popular decision because he was a Raiders’ lifer. He took over as head coach and remained in charge for six seasons. Then, 12 years later, Al Davis decided to bring the veteran coach back, yet things didn’t go as well this time.

He raised eyebrows when he hired Tom Walsh as offensive coordinator. The pair worked together before but Walsh spent the last few years running a bed and breakfast in Boise. Shell’s men were awful and finished the year with a 2-14 record (via SF Gate). The modern game had passed him by and Davis fired Shell at the end of the season. It’s a shame but Raiders’ fans still regard him fondly.