My 2 cents..
I thought I had read and heard that a lot of the schools use some form of recruiting services. However, I thought those services provided, tapes, scouting, briefings etc of players BUT had no biased involvement with the players.
Wasn't there a story about one of these services in the book Meat Market and Orgeron getting mad at a service because they came in with tapes and film that he wasn't impressed with?
I think the real issue is the guys out of Texas appear to be street agents and not legit recruiting services. I'm not sure about hard evidence, but the circumstantial evidence looks fishy from the initial reports.