The A’s promising young starting pitchers will have a tremendous resource at their disposal this spring: Dave Stewart, one of the most intimidating pitchers in modern baseball, will be a guest instructor for the team, he told The Chronicle on Friday.
Stewart, 60, was a ferocious competitor who had four consecutive 20-plus win seasons for the A’s from 1987-90 and went 119-78 with a 3.73 ERA in his eight years with the team. He thrived in the postseason, going 10-6 with a 2.77 ERA, and he was the MVP of the 1989 World Series as well as the ALCS MVP in both 1990 and 1993.