Ranking? We beat a bad GT team, a bad BC team and a bad NCSU team. "Bad" is relative, they may be powerhouses in the ACC , but all three of those teams wouldn't be in the top ten of any other BCS conference, and would be dead last in the SEC, B12 and PAC10.
We have played a harder schedule than many highly ranked teams, to be sure (OSU* and Florida come to mind), but really, ranked? We got beat by a basketball score to the only ranked opponent, KSU.
Now ND is very beatable. Slow, a plodding, inept offense, and a slow defense that only looks good against slow, 3 plays and out style B10 teams.
Win that, and let the rankings come.