website it says:

"2015 Pairings: To Be Assigned by CFP Selection Committee "

You mention that some schedule says otherwise, and if it does, then it is listing it wrong. Here's a couple of other schedules for you:

http://www.sportingnews.com/ncaa-football/story/2014-01-15/college-football-playoff-schedule-2014-site-location-semifinal-att-stadium-future-2015-2016-2017-2018

"Cotton Bowl, Jan. 1, 2015: Host Bowl" (e.g. access bowl for at-large bids chosen by the CFP selection committee)

http://www.fbschedules.com/ncaa/college-football-playoff-schedule.php

"01/01/15 - Cotton Bowl
Host Bowl"

(e.g. access bowl for at-large bids chosen by the CFP selection committee)


And from it's wikipedia page:

"The Cotton Bowl Classic will return to "major" bowl status in the 2014 season when the new College Football Playoff begins that year. It will host a national semifinal once every three years through the 2025 season, and in other years will host 2 at-large teams that did not get selected to the playoff. As part of this move, television rights will switch to ESPN, who will also televise the other games in the system."




Apparently, it seems as if you are mistaken.