Lisa Watkinson, executive director and the global product manager for credit-default swap and credit indexation at Morgan Stanley in New York, has left the firm. Watkinson did not respond to e-mails. Spokeswoman Melissa Stonberg confirmed the departure, but could not determine by press time who Watkinson reported to or whether she would be replaced. An official close to Watkinson said she will join Lehman Brothers. Lehman spokeswoman Tasha Pelio said the firm does not name new hires until they start work.