You can have whatever opinion you want. But there are reasonable opinions and unreasonable opinions. If this supposed nanny was caring for Caylee for over a year, where are the pictures, the sightings, the references to the nanny overheard by family friends, the phone records, the e-mails, the text messages? How come no one ever saw the nanny? How come no one outside the family has come forward just to say that they heard of this nanny before this case went public? How did Casey communicate with the nanny that you believe exists in order to arrange for Caylee to be nannied all this past year?
And if Caylee was taken, why did Casey have to lie about her employment, about her outcry witnesses Hopkins and Juliette? If Caylee was taken, come up with a theory that would also provide a reasonable explanation for all these inconsistencies and lies.