I agree it's not an insurmountable advantage. Anybody can do it. And perhaps it isn't advantageous. IMHO, when you can outsource some of those laborious scouting aspects it frees assistants time to do other things like gameplanning, recruiting, and such.
It's obviously not scientific or dispositive by any means. It just strikes me as influential when the guy has shown such a pattern and propensity for beating teams regularly in the postseason, even teams that Bama might have struggled with during the regular season.
But all this stuff overlaps. If the staff has more time to scout, then the staff probably has more time to request other information and whatnot. If there's a team ready to research, process, analyze, whatever, I can see that being a helpful service.