Since I've been reTLSed ITT, I'll add my two cents based on my convos with sports lawyers.
There are two ways into the business:
1) OP mentioned the commissioners. The way to do something like that is to go to a biglaw firm, get on in a group or with a partner who represents sports leagues, hope they take a liking to your work, angle to get an in-house job, and try to work your way up from there. This is just like trying to use biglaw as a way into finance or energy or any other major industry. Hell, I met one woman who didn't even want to be a "
sports lawyer," when she went to Proskauer, just happened to do a lot of work for a league, and is now working for that league in-house. Hell, she might end up in a high end managment position some day.
I know lawyers who work with league clients for a living. It is not sexy. They do not get to meet pro athletes on the reg or sit in luxury boxes. They do the same litigation or deal work that they would do if they represented a tech giant or bank.
2) The second way is to be a former D-I athlete or someone with preexisting contacts and leverage that job into being a sports agent. You don't need to go to a T14 to do that, but OP seems to have the right idea that going to a higher ranked school will give him a backup option on the great likelihood that his plan fails.
OP: The reason people are jumping down your throat is that you come off as someone who thinks that all you need when you have hard work + interest in sports is LAW SCHOOL. Look, maybe you were an ex-DI athlete and know a bunch of people looking for agents, and my advice doesn't apply. But if you are just some college student who really knows a lot of shit about college football, you have to understand that hundreds of entering law students this year will have those three things and the vast, vast majority of them will not become sports agents. Law school isn't a way for you to jump the line in front of all the other kids with no connections and no experience.