You missed the point. Every school has their pool limited by geography, conference affiliation, style of play, depth charts, etc. But, every high major outside of Vandy, NW, Stanford, and maybe Duke (though I think they take anybody now) does not deal with admissions restrictions.
So, yea, Stallings may recruit a kid from Oregon who doesn't want to play in the ACC but let's say the kid has only the NCAA minimum on SATs and GPA, Stallings never would have picked up the phone at Vandy. He couldn't have got him in. And its not like Stallings also didnt deal with a limited pool also due to geography, style of play, etc. He may identify a player with 1000 on SATs from Minnesota but that player wants to play in the Big Ten instead of Vandy.
If there are 250 high major recruits, and 30% can get admitted to Vandy, that means his starting point was limited to 75. Of those 75, lets say 75% just have no interest in Vandy based on geography, SEC, style of play, whatever, you are down to 18 recruitable high major recruits.
At Pitt (and most everywhere), NCAA minimum is all thats required. So, instead of starting with 75 players, you start with the full 250. Its a huge advantage at Pitt.
And if you think Stallings is lying, the Vandy bestn writer confirmed that they have tougher admission standards for their athletes. I guess he is lying too.