She doesnt look good enough for Rebook. I'm sorry but we are still in a society that sexualizes women. I'm not saying thats wrong or right, I'm just pointing out the white elephant in the room. Lebron James is an ugly mofo, but he's the best player in the NBA, hence big endorsements. Mike Tyson was ugly as heck but before he went onto being a cannibal in the ring, he got major endorsements as well, because he was great at the time.
You don't have to be the best in your sport as a chick to score endorsements and honestly you she cant be hating on other girls getting the deals because it's not their fault they won out on in the gene lottery. Esparza didn't have much marketablity and its not just that shes just not that nice to look at, she's also really got on personality thats good for a marketer. These brands pay people TONS of money in their companies to look into who they should go after to represent their brands. They have MBA's and PHD's in psychology, marketing, etc (trust me, I know these people) and if they say she's not marketable, shes not marketable.
Now we can have a whole other debate on whats wrong with determining if someone is marketable or not but thats not what my post is about. She was an over hyped, not as good as she thought figther who really just seemed like if she were a chick working in your office, she'd be the chick in the office no one liked.