In an immature market, be a generalist. Be good at switching tools quickly because they'll come and go, and be good at the general problem-solving process becau

In an immature market, be a generalist. Be good at switching tools quickly because they'll come and go, and be good at the general problem-solving process because you'll face a lot of problems with new tools. In a mature market, be a specialist. Be good at one very popular tool, and specifically solving one problem with it, and you'll find a ton of companies willing to pay you a lot in order to solve that one particular problem quickly.