Travis Ishikawa, who hit the home run that clinched the Giants' 2014 pennant, is joining the minor-league coaching staff as part of a significant expansion and overhaul of a system designed to boost the ability of minor-leaguers to feed more players to the majors.
Ishikawa, whose big-league career ended in 2015, will be the hitting coach for one of two teams the organization will have in the Arizona Rookie League.
Ishikawa plus all the new and returning coaches will work for David Bell, the former infielder who oversaw the expansion after the Giants hired him in November as vice president of player development.