some of them you can (i.e. Sabrina, Aurora, ...); as a male player you can secretly record them and publish the video; it make take a few tries but then she will show up (or with her boyfriend), usually the next day, and in the discussion you can persuade her in. Then you may have a (difficult) interview and better contract her right away; beware that she is considered topstar to your rivals, so sometimes she is signed right after your interview by them. Though the possibility to "recruit" them it is not intented, as far as i understood. But i think you were talking about the riddle ones (i.e. tomb raider) - even though they seem to be maxed out i still would like to get them into my team