>Anyone who can't be productive in Scala (not "better java", not "worse haskell", Scala) isn't someone you want on your team anyway.
It’s funny that you gloss over one the big productivity issues with Scala. Somehow everyone who joins your team should be acutely aware of your flavor of Scala.
If the community decided if wanted to be a better java or a worse Haskell then I bet more people would be productive in Scala