Shell is the only coach to have more than one tenure with the team, and Flores and Shell are the only coaches to have coached the team in both Oakland and Los Angeles. The worst coach statistically in Raiders history is Red Conkright , with a winning percentage of .111,  while Rauch is statistically the best, with a winning percentage of .805. However, the all-time leader in both games coached and wins is Madden, with 142 and 103 respectively.  Of the 20 Raiders coaches, Al Davis and Madden are the only Raider coaches to be inducted into the Pro Football Hall of Fame for their contributions as coaches. Davis, who was also the Managing General partner and an AFL Commissioner, was in the Hall of Fame class of 1992. Madden was in the 2006 class. Two coaches, Flores and Shell, are also former players for the Raiders. Shell was also inducted into the Hall of Fame in 1989, but as a player.   The current coach is Jack Del Rio .