you could put a drama for Jaslene for being a poor girl who was abused as a child and held herself to a only dream of becoming something and putting all her heart and effort into this, a chance she refused to let go that tyra could see that.
but again, a drama could be set up for anyone, i agree shes not the biggest natural model, but in all honesty, the final 3 are far from being that, Natasha just doesn't look like a model in person, but she has a amazing personality, and you could apply that to Jaslene too, but both of them have been working hard to become what they are on pictures, and you can see that evolution by every week, could be not enough but it's enough for Tyra i guess.
even if shes desperate to be a tall model she could use part of her money as a covergirl to have a surgery to gain height (i read about this couple of months ago, it's a easy process that gives you something like 2-4 inches, VERY expensive and you have to run a lot of tests to see if you can do such thing and if you really want to do it)
but this that i just said is completely absurd and i don't think she could or should do it, mostly because if she won, it's because they liked her just the way she is, and if it doesn't work the same way in the real fashion industry then she should sit with most of the winners.
flfloic i agree with what you said and what really make me root for her is just the person that she is really, everyone has its favourites and i see something special in her, and i see something different in her look, if it's going to work just time will tell, i know that shes is not giving up like 90% of the girls that gone into antm, i think even without sucess she will be the "melrose type". i think all 3 of them could do great things, but not as a model, Renee is gorgeous, but i think she can be too avarage at times, Natasha has such a pretty face, but shes not so proportional, shes not short (if shes really 8.5) but i don't know if its the hair, she looks like a actress to me, and Jaslene that can look awful and gorgeous depending how she presents herself, and a supermodel looks incredible even when shes ugly, is just special and you can't really compare her to anyone. and i think they lack that.