Freelancers: Jack-of-all-trades or master of, er, one?

Freelancers: Jack-of-all-trades or master of, er, one?

Who doesn’t love an expert?  And who wouldn’t want to be an expert?  When you need a plumber, you want an expert, don’t you?  Watery mishaps at 3am are a misery, so you hire an expert to make sure it’s sorted properly.  You want your financial advisor to be an expert...