My wife is Italian, and has become the stereotypical Italian mother. She can cook her ass off. BBQ and Asian (mostly Vietnamese and Korean) are her specialties, with Italian simply coming naturally. Since she's really come into her own cooking, that's when we started going rub over sauce. Or, in the case of the chops she grilled a couple of nights ago, a little of both.
But yeah, you really have to have your shit together to get it right using nothing but a rub. I sure as hell couldn't do it, but she can for some reason.
Of course, I don't get to touch the grill either. Well, that's not true. She sometimes lets me take the cover off and turn the burners on.
I'm the prep cook. Hey, I've got no problem with that. I love cutting shit!