I know, Dave, I was being mildly ironic as I sometimes attempt to be. If there is one thing that Humble Pie were not particularly strong in then it was writing their own material, especially once Frampton had left the fold. Their best stuff was always - highly originally approached - covers. The way they turned
I Don't Need No Doctor into a rifforama is a case in point - that primal E-G-A riff (F-G#-A# in the Humble Pie vid, but it might be running too fast or they had tuned a half-step up) shows up in neither Ashford & Simpson's original nor the Ray Charles version. (But on first listen of the Chocolate Watch Band version, Marriott likely nicked it from them, the artfully dodging little thief!!!)
I really liked Ashford & Simpson.
Pity that throat cancer (what a mean disease for a singer) took him from her and us.