FYI: (I don't believe in selling a fund when there is a manager change. As a rule of thumb give the new manager at least a
year.)
A manager change presents one of the greater challenges in mutual fund investing. You need to figure out how important the departing manager was to the fund, how good the new manager or managers are, whether the fund's strategy will change, and if that strategy still fits with your portfolio.
Regards,
Ted
https://www.morningstar.com/articles/874110/7-of-the-years-biggest-manager-changes.html