Greenwich Capital Markets has hired Debashis Bhattacharaya from Salomon Smith Barney to do prepayment modeling as well as to work with its collateralized mortgage obligation desk. Bhattacharaya was unavailable to comment. The slot is newly created and he will report to CMO desk chief Anilesh Ahuja, as well as mortgage-backed security head Doug Greenig. At Salomon Smith Barney, he was an adjustable-rate mortgage security analyst and reported to Lahkbir Hayre, head of quantitative fixed-income research, who did not return a phone call seeking comment.