If you can tell me one significant thing that Rosita has done, I'll give you all of my worldly possession in the event of a real-life zombie apocalypse... I'd love to tell you Christian Serratos is a good actress, I'd love to tell you her character is just misunderstood, but no, she simply hasn't featured enough to be able to pass any sort of judgement on her. Hopefully Season 6 marks a turnaround for Rosita as she ditches the fake 'army girl' look, but there's absolutely no reason to keep her around as things stand. She could very well be the next to go and the writers wouldn't even have to spend long mourning her... Harsh, but true.