Cynthia Littleton Business Editor The WGA emerges from the long slog of a strike and difficult contract talks with a deal that is far richer and more comprehensive than most industry observers would have predicted last spring when the fitful negotiations began. In short, the scribe tribe’s sacrifice of mounting a 148-day work stoppage — coupled with the extra pressure heaped on when SAG-AFTRA went out on strike July 14 — gave the WGA the leverage it needed to power through its agenda. Here’s a rundown of the key issues that have been settled in the tentative agreement that the Writers Guild of America reached Sept.