Article From: "Greg Ryan"   Read full article

Days after taking over as chief executive of State Street Corp., Ron O’Hanley has moved to lay off 15 percent of the Boston-based company’s senior management ranks.

The layoffs are part of the financial services giant’s (NYSE: STT) latest effort to keep expenses in check in the face of difficulties growing revenue. Bloomberg first reported the job cuts, and a State Street spokesman confirmed them to the Business Journal.

In an investor presentation in December, O’Hanley said he was aiming…