Again, I'm not going to defend his coaching ability; he seems like a pretty terrible offensive coach. But I don't think this has anything to do with Cronin not being accountable. The only one Cronin is accountable to is Verbeek and if Verbeek thinks Cronin is doing a great job instilling work ethic and good practice habits into these guys, then Cronin's meeting the standards that were set for him.
Verbeek is ultimately accountable for the product on the ice, but he's not the one who has to answer questions after each game. As fans, it sucks to watch. But I think we just have to wear the frustration. There's no way we can test what Cronin is actually being asked to do since it's all behind the scenes.