Most systems are not large enough to need 200 developers. Even when they are, you hire those 200 over time. If you have 200 developers (or 200 anything) you n

Most systems are not large enough to need 200 developers. Even when they are, you hire those 200 over time. If you have 200 developers (or 200 anything) you need to have a good training and mentoring program. Language is not the problem. If someone is a senior developer (not just has the title because of years of service), you can teach them Haskell on the job for little cost. Sure it will take them a few years to be an expert in the language, but most problems they need to solve don't need language experts, just someone good enough. And Haskell is a different language, most often you are hiring for a language that is only slightly different from ones they already know.