Some quick analysis shows that (all other things being equal) a Cajuns loss to Southern Miss would shrink their RPI to about .5556 (from .5569) ... a small loss. But the rankings are very tight in proximity of the Cajuns. This would presently slot the Cajuns at #48 in the RPI rankings ... just .0001 behind #47 Kent State ... but also just .0002 ahead of current #48 Virginia Tech ... and only .0003 ahead of #49 Arizona State, .0005 ahead of #50 Missouri and #51 UC Irvine. While #52 Mississippi State (behind only .0009) is also very close, I do not think a Tulane loss (coupled with a Cajun loss to USM) will bring them quite that far down. But it is crazy close with these teams. A Tulane loss (and Cajun loss) could potentially bring the Cajuns down to #52. Anywhere from 48 to 52 ... all other things being equal (outside of Tulane). There is not that much all other things being equal left, either.
Brian