If you invest in actively managed funds, the departure of a manager should concern you. If it doesn’t, that tells you something about the fund, good or bad. Read more
... It would be easy but wrong to apply some rule of thumb to manager changes, as in “dump the fund when the manager leaves,” but even the most ardent supporters of the “buy the manager, not the fund” school of thought believe instant change is a bad idea.
If there is a deep bench or the departure has been planned and there is a trained successor waiting in the wings, stick with the fund until you have a better feel for how the new manager will run things. But if a manager change makes you feel hopeless about the fund, say goodbye.