As long as weed doesn't rule your life, you can play sports and not have it affect you, much like drinking. If you're showing up to practice or meetings high, you have a problem.
The reason I brought up drugs is because those particular guys had issues above and beyond the norm. You knew that I'm sure, but it didn't fit a point you were trying to make.
There is no reason a highly rated recruit can't succeed at Ole Miss, and it happens all the time. If drugs are more important to a guy than football or if he's lazy in the classroom, he's not going to succeed anywhere. That's a personal issue, not a school issue, unless you're claiming CJ has those issues.
Tig has never stopped doing drugs. He was such a big part of what his team was doing that he ran for fewer than 400 yards this past season. I hope he gets his mind right, but if he doesn't, he won't make it at JSU either, just like he didn't at Ole Miss. Pat Patterson couldn't make it at EMCC after not making it at Ole Miss. Again, that's a personal problem. Patterson wouldn't have been any better off at MSU, and neither would Tig. Neither would Chris Strong, unless you let guys pass who don't attend class.
That's the case with most players. They either have issues or they don't. If they have issues, it doesn't matter where they sign, they aren't going to work them out until they decide to do it on their own. If a player is focused, willing to work, and talented, he's going to succeed wherever he goes. Arguing otherwise is just stupid, which is what I think you were going for.
I'll give you Jerrell Powe as an example. He was highly rated out of high school but had tons of transcript issues, to put it nicely. He finally got in school, and he was way overweight. However, he was focused and willing to work, so he was able to stay in school and lose the weight so that he could give himself a shot to get drafted, which is more than most guys get. Had he been lazy, he would've been back home in Waynesboro a long time ago.