IBM's Watson won Jeopardy, but can it win business from banks?

By Olivia Oran NEW YORK (Reuters) - International Business Machines Corp is in an unusual fix in telling big U.S. banks they can use its Watson software of Jeopardy-winning fame as a cost-saving solution: bankers say they like it, but cannot afford it. Banks are in the fifth year of their belt-tightening campaigns that began in 2011, chasing billions of dollars' worth of savings, and vendors that offer everything from technology to janitorial services are getting squeezed. For IBM the irony lies