If you need anyone to back you up, I would be happy to share my experience building a team of Haskellers, putting it into production at a start up and how Haskell scales to a large enterprise.
That would be great - do you have any writing about your experience anywhere?
Someone a few days ago made a comment that Haskell posts on HN frequently get many upvotes but fewer comments, and that this symptom is indicative of lots of people who are following the language but haven't had a chance to dive in. I think hearing more success stories about putting it into prod would go a long way towards allaying fears from earlier days. Seems like the HN community would benefit from hearing your story.
https://www.fpcomplete.com/business/blog/utilizing-haskell-f...
There's also a more in depth version on the commercial haskell mailing list (I can't find it from work I'm afraid).
Feel free to fire any more questions at me :-)
https://groups.google.com/forum/#!searchin/commercialhaskell...