McDaniel is the #2 team according to GUESS. So, yeah I'd say he's clearly built a good team. In his conference, only one team is within 3 points of his team. 3 points is significant enough for a 95% win percentage against that team. The rest of the teams in his conference are 7 points or more. 7 points is HUGE.
My team is the #9 team in Dobie. In my conference (ODAC) the closest team to me is 4 full points less. I played a team just recently that I was 7 points better than. Beat them 48-7. One scoring drive. If I played people 7 points lower then me every game, I'd likely have some shutouts too. So, it may be something to the gameplanning, or it may just be that that team is significantly better.