There are some systems that have guarantees a woman will be OFFERED a bid if she plays by the rules & maximizes her options. It doesn't guarantee that it will be to a sorority she wants anything to do with.
I think this is different than "guaranteed bidding" where pretty much if someone signs up for rush, even if the groups keep dropping her she'll end up being placed somewhere.
http://www.greekchat.com/gcforums/sh...ad.php?t=57088
http://www.greekchat.com/gcforums/sh...ad.php?t=48395
http://www.greekchat.com/gcforums/sh...d.php?p=276266
I guess that the rationale behind it is somewhat honorable and trying to downplay the snob factor sometimes associated w/ sororities and rush, but the plain truth is that not everyone is suited for sorority life. Not to mention the particular makeup on that certain campus.