For as much as we complain about how slow they are to promote, they are playing 4 guys who are pretty much rookies this season. I think there is a fair argument that the goal tending was bad enough they should have given Cossa some run, but OTOH, In the one game he did play he didn't exactly demonstrate an NHL level sense of positioning. But I still would have preferred to see a longer test.
So I'm not so concerned about the management of the internal talent pipeline. They are missing the playoffs because of their pro level moves - and over more than just this season.