Having worked jobs for PlayOn sports, and known people who've worked for MaxPrep, it takes a real keen eye to find a kid who is 17 or 18 and see him ending up in the NFL some day. Half of these kids will not play well in college, several will lose interest when presented with the darker aspects or business of the sport, more will be decent, but not great. And many play in systems that are not often seen in college, and never in the NFL. So it's really hard to say. But at least a program like this helps take some of that edge away, and gives scouts some idea.
Just as an example of what I'm talking about as to how hard it is to predict this future:
Jake Locker was at Ferndale HS in Washington (your state!) and took his HS team to an unbeaten record and won state, all on his arm. Took over a terrible Washington team, they knew he'd end up in the NFL anyway, no matter how bad the team was. When Matt Barkley was recruited to USC, it was widely assumed he'd flourish under Pete Carroll, and end up a top NFL draft pick. Both were true (though Matt's not in the NFL yet, he'll be a top 5 pick next year).
Ahhh yes, USC under Pete, they had great radar, right? A crystal ball of talent evaluation, right? Remember a guy named Mitch Mustain? Huge hype on that guy and his arm. Then there was Rocky Hinds, who was a head case even Carroll couldn't fix. Then, there's Todd Marinovich....
Remember a guy at LSU after Jamarcus Russell and Matt Flynn named Ryan Perrilloux? Huge prospect that guy was. Supposed to be better than both when he got to LSU. But he pretty much busted in college and now throws practice squad balls.
UCLA had a rocket armed guy named Ben Olson you might remember. Had a "John Elway arm" coming out of high school they said. Played about three good games in college, and ten bad ones before sitting.
Before Sam Bradford was at OU, they picked Tommy Grady as their next QB to replace Heisman winner Jason White, as he had a cannon of an arm. Well, too bad Grady couldn't throw the ball straight, or under pressure, or read defenses, or...