Michael Eldredge was named vice president of investment management at MassMutual Financial Group's retirement services division, confirmed spokeswoman Lisa Reilly.
He replaces Kristin Bushard. Ms. Reilly would not say where Ms. Bushard went.
Mr. Eldredge will oversee investment research and management for MassMutual's Select and Premier mutual fund families, and oversee the relationship between boards of trustees of the two mutual fund families and the company's subadvisers.
Mr. Eldredge was vice president of fund strategy and investment due diligence at ING US Financial Services. An ING US Financial Services spokeswoman could not be reached by press time for information on his replacement.