Deutsche Asset Management portfolio manager Roy Ogata and analyst Jason Reid have left the firm.
This takes the number of employees that have left this year to five.
Portfolio manager Jon Venetos left the company in February with two analysts following him.
The staff exodus has triggered different responses from the rating agencies.
Standard & Poor's (S&P) has placed the Deutsche Strategic Value Fund and Deutsche Global Equity Opportunities Fund on hold.
"We have found out that five people have left the company over 2007 and yet no new hires have happened," S&P fund analyst Simon Scott said.
"We feel it is timely, given the number and scope of staffing changes, to revisit the team capability and seek clarity about the strategic and operational direction of the funds."
Morningstar, however, maintained its investment grade rating.
"We are not happy with the staff departures. We are, however, comfortable that the strategy is adequately resourced under the management of Steven Bossi," Morningstar fund analyst Chris Douglas said.
