There is definitely a chemistry factor to take into account. So there are probably some fighters Roach couldn't help anymore than say Manny Steward with Jermain Taylor. Horrible team. Or Mayweather Sr. and Hatton.

I do think that Lateef Kayode has potential and Freddie has failed to bring it out.
Maybe his biggest failure is trying to work with too many fighters at the same time.

Great posts all around.