You don't think a high school player or player with some college player has been far enough down the road?
What about Dad's that read internet pitching sites, are they qualified enough?
How about or what is a Student of the game?
It is very individual.
I met an old college coach in the northeast that had coached for over 40 years, taught several players well, sent a few to the pro's, was highly respected in his field and it turned out he never went to high school. He was an accomplished sandlot player. He has passed on now, but many had said that he was as knowledgeable as anyone in college baseball.
Some will say, that was in the old days, because they feel that now that we've learned new terms and seen fancy video's, we know more than coaches that have been around the game for 30 years.
As I said, there is no substitution for experience.