Zdeb and Poquette platooned over the rest of the season, and the rookie finished with what turned out to be a career high .297 batting average in 105 games. He also had career bests with 2 home runs and 23 RBI. In the 1977 American League Championship Series against the New York Yankees, Zdeb appeared in four of the five games, but failed to get a hit in nine at bats, although he did steal a base.