[yogthos]

The core point here is that Haskell is a more complex language that requires understanding and applying more concepts to write effective idiomatic code. Mentoring does help, but you still need to build a mental model of using the language, and there isn't a shortcut for that. Clojure requires a smaller mental model than Haskell, and that makes it easier to learn. The end result is that you have to spend less time ramping people up.

If Haskell works for your team that's great though, it did not work for mine.