Even most really bad schools can usually get 1-2 people a year into elite firms.
There aren't that many "elite" firms for most really bad schools to be getting 1-2 people in a year. Search Williams & Connolly. There are maybe 5 or 6 people at the whole firm who didn't go to top law schools; only one T3 grad, and he was in 1990. Williams & Connolly=elite firm. Whatever firms you're thinking of that most really bad schools can get 1-2 people in a year at=not elite.
There are very, VERY few firms that don't take anyone from outside the "T14" or what have you, whether they would prefer to or not. If that's your definition of elite, you're welcome to it, but frankly I think it's a little circular and stupid. You seem to be defining firms as elite on the basis of whether or not they ever take people from lower-ranked schools. Williams & Connolly, Cravath, et. al notwithstanding, I think when most people say "elite" (like the poster you're responding to), they don't mean it that narrowly. The vast majority of well-respected, fancy-pants law firms will take people with very good grades from lower-ranked law schools.