P- one limitation is that there is lack of clarity over the nature of the central executive
E- Baddeley (2003) himself recognised this when he said ‘the central executive is the most important but the least understood component of the WMM
E- the CE needs to be more clearly specified than just being simply ‘attention’. for example, some psychologists believe the CE may consist of separate sub components
L- this means that the CE is an unsatisfactory component and this challenges the integrity of the WMM