Baz is New Zealand's fifth highest test run scorer in history, which is kinda crazy when you think about it, and it's not like he has a woeful average. I think he does get too much stick - it's kinda like the 90%/10% theory, McCullum is so talented that everything he does badly is over emphasised, the 10% he does wrong just infuriates everyone.
I agree with JV that one of them will go to become an opener, I'm still less than convinced with Rutherford, and Fulton won't be around for much longer either.