Bloomberg: Google is turning to Wall Street for its next chief financial officer, as the tech giant grapples with rising costs, a growing pile of cash and a need for fiscal discipline as it invests in new industries. Ruth Porat, 57, will leave Morgan Stanley in April after more than 25 years there. At Google, Porat will succeed Patrick Pichette, who announced earlier this month that he would retire. Investors are looking for Porat to apply her financial acumen as Google invests to spur growth amid increased competition from Apple, Facebook and Amazon.