On the whole, I think I agree with Scott's advice in this post. However, there are some real challenges that come with the choice to be 'good at a few things' instead of the 'best at one thing. Namely, if you're not starting your own business, I think it massively reduces your employment mobility.

I am fortunate in that I am valued within my organisation for my 'generalist' spread of skills (including communication, development, analysis & sales). It's clear to me how useful it is to be able to approach a problem from several angles and engage with specialists from different areas effectively.

However, if I ever want to move out of my current organisation, I feel as though I would end up taking a significant step backwards in my career because almost all advertised jobs are specialised roles.

This creates a constant pressure in my mind to specialise and focus more on a single area.