Denver Public Schools Retirement System hired Dimensional Fund Advisors to run $65 million to $70 million in its actively managed International Small Company Value mutual fund, said Amy McGarrity, investment officer for the $3 billion plan. Funding came from terminating Morgan Stanley, which handled the money in a similar style in a commingled fund. Ms. McGarrity said Morgan Stanley was terminated for performance. Morgan Stanley spokeswoman Erica Platt declined to comment. The plans invitation-only search began in September and was handled internally.