You have no say. You have absolutely no control over what investments your fund buys, what it sells or the investment strategy it follows. Fund names are misleading. A fund may decide to call itself a large-cap growth fund, but its portfolio is made up entirely of technology stocks. What you really own now is a technology sector fund, which is far more volatile and risky than the large-cap growth fund you originally wanted.
Funds switch missions.
A fund may have been a value fund when you bought it. But growth-stock investing is very hot today. With no formal announcement, your value fund has become a growth fund. Managers come and go. You bought the fund because you heard great things about the manager.