Streaming and its ripple effects are at the center of the dispute. The guild says that even as series budgets have increased, writers’ share of that money has consistently shrunk. Streaming services' use of smaller staffs — known in the industry as “mini rooms” — for shorter stints has made sustained income harder to come by, the guild says. And the number of writers working at guild minimums has gone from about a third to about half in the past decade.