Do you feel 'not specialist enough' versus the role(s) you applied for?I see specialism mainly in terms of industry sector, so if you have experience in a small niche consultancy you may be more specialist than they were aware of (not always e.g. medium sized consultancies). Specialism might also refer to a functional area (e.g. SAP specialist), so they might be looking for a specialist skill.Not aware of the full story, but 'not specialist enough' without further qualifying the comment would seem to be rather inadequate reasoning.It happens, but I'd reflect on it in case you are not representing your skills in a way that ticks boxes with a potential future employer.