There is no doubt that sector familiarity is something which every in-house lawyer needs to acquire. However it is a pity that so much weight seems to be placed on this by the recruiters. I believe that individuals and organisations can benefit hugely from experience gained in different sectors.
If you identify a sector in which you would like to work, put some effort into acquainting yourself with it – there is so much information available these days – and network with others (lawyers or business people) who already work in it. Build your business acumen and personal skills – they are good passports. Give some thought to how you fit in the generalist / specialist spectrum.
Take heart from appointments which show that the silos do not trap you in a sector for your entire career.
Contact me if you would like some more ideas on this subject.