Startup Idea : Predictive HR solution for hiring

One of the major challenges that most organisations face is the issue of hiring the wrong resource in the company. The blame goes to the HR. HR unit today is transforming itself into contributing back to the organisation by delivering $$ as hiring costs saved. How easy it is to really transform the new-age hiring. Solution I would like to design a predictive analytics solution that would be on a big data platform run on a portal, which would provide the HR to login and analyse the skills of a candidate they are looking to hire. The portal will try to extract all possible information from the web that is available of that candidate and also the predictive engine will help the HR to provide inputs around the candidate's skill relevance to the role/organisation and chances of staying for a longer duration etc. This would help the HR to start saving costs. Also, the portal would offer features like Web interviews in cases where they cannot have F2F and would provide a portfolio to the HR once all steps are undertaken, the HR would get a report about the candidate potential which would help them make a decision to hire.