As we know from biology, evolution is not always a smooth or an incremental process. This has certainly been the case with the
evolution of the strategic human resource managementฟ field.We have seen periods of dramatic conceptual leaps aswell as periods
in which it seems that more questions were asked than were answered. We know, for example, that many kinds of fit between
strategy and HRM are linked to effective performance. However, we still have much to learn about the particular elements in the
‘black box’.