I find it interesting that RR played defensive back given his status as an innovator on offense. We have all discussed at length that he doesn't spend much time with the defense, and personally I am fine with that. If Casteel were available I would want him, if only for the reason that I know RR would trust Casteel enough to NOT dabble in the defense.
My interest is that RR; is not a defensive coach, doesn't claim to be a defensive coach, and would assume to be in a position where he doesn't need to spend anytime with the defense...yet played defense in college.
For those that know more than I do, are there any other names that jump out to you as coaches / coordinators who specialize on one side of the ball, yet whose playing career took place on the other?