I remember last November the QIN had stopped netting coho but WDFW allowed the recs to continue to fish for coho in the Chehalis system. The QIN complained that they had stopped netting because of concerns for the wild coho and that WDFW was going to damage the wild coho run by allowing a coho sport fishery during November. But most people knew the real reason for the QIN to stop netting was the low prices they were getting for their fish.
Then toward the end of November WDFW closed the sport fishery because (they said) they were concerned with the recs hooking wild steelhead in December while fishing for late coho. Like RG said, people who know the Chehalis system know that very few steelhead enter the system in December. Large late timed coho were entering the Satsop when WDFW closed it near the end of November.