Chris Low and Brad Edwards react to the placement of Big 12 teams in the second College Football Playoff rankings and how the conference will be impacted by the schedule. Also, is Iowa the fifth best team in the country? (3:04)

The SEC avoided disaster in Week 10.

The SEC 's worst-case scenario would have been for a two-loss Ole Miss team to win the conference title -- especially following the drubbing Memphis took from Navy, which came three weeks after Ole Miss' loss to Memphis -- but Arkansas helped out by beating the Rebels, and now Alabama is four wins away from locking up a spot in the playoff.

Unless, of course, it loses on Saturday at Mississippi State -- and Ole Miss beats LSU.

Then the SEC is doomed.

Speaking of doom, welcome back to #doomsday.

With the latest rankings out, here are possible nightmare scenarios for how each Power 5 conference could get the snub from the College Football Playoff selection committee:

Doomed if: The same officials who worked the Miami-Duke game are assigned to the ACC championship game. OK, seriously: If Clemson loses, it's doomed. If North Carolina wins the league, it's doomed. It's undefeated Clemson or bust in the ACC.

Doomed if: 1. Clemson, Ohio State and Alabama all run the table and win their leagues; 2. Notre Dame wins out AND Stanford wins the Pac-12; and 3. the Big 12 produces a one-loss champion. Follow all that? That would mean that Clemson, Ohio State and Alabama are in. The fourth spot would come down to a two-loss Pac-12 champ in Stanford (out), a one-loss Big 12 champ and a Notre Dame team that beat the Pac-12 champ and lost only to the No. 1 team in the country (in).

Doomed if: Undefeated Iowa wins the Big Ten -- including a win over undefeated Ohio State -- and is still left out. Last week we talked about the possibility of a two-loss Michigan team winning the Big Ten and being left out, but this is decidedly more painful. Fans would like to assume that an undefeated Power 5 conference champion is an automatic lock for the CFP, but the committee clearly has no problem putting a one-loss team ahead of several undefeated teams, and Notre Dame's schedule -- assuming the Irish win out and beat Stanford, and Stanford still wins the Pac-12 -- could trump Iowa's in the eyes of some committee members. Notre Dame's SOS is No. 12; Iowa's is 62nd.

Doomed if: Stanford beats Notre Dame and wins out, but is left out in favor of an undefeated Big 12 champ. Imagine that. You've got a surging Stanford team that knocks off what should be a top-10 Notre Dame team, beats Utah in the title game and finishes the season as a one-loss conference champ and one of the hottest teams in the country. But Baylor or Oklahoma State is undefeated with three wins over top-15 teams and is in the top four, along with a one-loss Alabama, undefeated Clemson and undefeated Ohio State. The same thing could happen to a one-loss Utah team that wins the Pac-12 by knocking off a ranked Stanford team that beat Notre Dame. Ouch.

Doomed if: A three-loss Ole Miss wins the SEC. Wait, you've heard that one before? Yeah, well, play it again. Picture this: Alabama loses at Mississippi State AND Ole Miss beats LSU. Seriously. It's not as far-fetched as, say, Toledo beating Arkansas, right? In that scenario, Ole Miss, Alabama and LSU would each have two league losses, and Ole Miss would own the tiebreaker over both of them.