When Foster joined the Leland Giants, he demanded that he be put in charge of not only the on-field activities but the bookings as well. Foster immediately turned the Giants into the team to beat. He indoctrinated them to take the extra base, to play hit and run on nearly every pitch, and to rattle the opposing pitcher by taking them deep into the count. He studied the mechanics of his pitchers and could spot the smallest flaw, turning his average pitchers into learned craftsmen. Foster also was able to turn around the business end of the team as well, by demanding and getting 40 percent of the gate instead of the 10 percent that Frank Leland was getting.