User blog comment:Dominic1743/“The Heroes' Journey” Discussion/@comment-2601:4A:8100:32B0:8ED:BDDC:98A2:2A4E-20200125044757/@comment-108.36.76.116-20200127112647

About them having no skills without Chuck and being incompetent; when Jack lost his powers and was discouraged after they were all "hit in the face" and Jack felt useless; Castiel told him that Sam and Dean didn't start with abilities. He said they'd been training since they were boys. That doesn't sound like everything Sam and Dean did came from Chuck. Maybe it was a curse.