Including the team's last season of 1954 with Joost as the manager, the Athletics had a total of 3 managers during its 54 season history in Philadelphia. While that is a fantastic feat, it is interesting to know that the New York Giants had a history of few field managers in span from the post AL MLB circuit. John McGraw took over the team in 1902 after being lured from the Baltimore Orioles of the AL. He would remain there through the 1932 season. He was succeeded by HOF Bill Terry, who would remain manager through the 1941 season. Next to run the team was HOF Mel Ott, who lasted through the 1948 season when the team hired successful Brooklyn Dodgers manager Leo Durocher, who remained with the team through the 1955 season. Bill Rigney managed the team its last two seasons in New York as well as the teams' first three years in San Francisco. Rigney came back to manage the team for the 1976 season.
Prior to the hire of McGraw as the Giants' manager, the Giants were known to switch managers fairly often, mainly because of their owner Andrew Freedman. It changed after the hire of McGraw, where stability would exist behind the Giants through the lineage that led through Ott. Through the years of late 1902-1955, the Giants had just four managers. That deserves as much credit as that of the Athletics, who essentially rode the magnificent run of the legendary Mack. Dykes, one of Mack's most trusted players of the late teens and 1920s, lasted just three seasons, while Joost only managed the 1954 season. By 1955, when the team moved to Kansas City, Lou Boudreau was the manager. Durocher was still managing the Giants at that time. From late 1902-1955, the Athletics and Giants had the exact same amount of managers. While the Athletics were in Philadelphia, they had exactly three managers.
While the years I mentioned make my point, the Giants did go through a Steinbrennian run of managers prior to deciding on McGraw in 1902. The 1902 Giants were run by Horace Fogel and Henie Smith before McGraw took over. Prior to that, George Davis (in what was his second stint) managed the team from 1900-1901. Buck Ewing opened up the 1900 season as manager. The 1899 Giants were managed by John Day and Fred Hoey. Cap Anson skippered the team for the end of 1898. Bill Joyce led the Giants from 1896-1898. Arthur Irwin opened up the 1896 season and the 1895 Giants were managed by three others, Davis, Jack Doyle and Harvey Watkins.