Core, Style Neutral or GARP managers seek to exploit the differences between market price and investment value, but do not follow a particular style. This means their stockholdings will typically include both Growth and Value companies.
On the surface this might seem to be the best of all worlds, but in practice it can be difficult to do successfully over a long period of time. This is partly because it relies on the stock-picking skills of individual portfolio managers rather than a clearly defined process that the entire management team can adopt. However, good quality Core managers are able to develop their own unique and robust investment processes which can help them to outperform over the full investment cycle.