[Updated Giants depth chart at Roster Resource]
Stubbs was signed to a minor league deal in early April and was promoted two weeks ago, though the veteran provided only two hits and a .258 OPS in 24 plate appearances. While Stubbs posted strong numbers in a regular role for Colorado in 2014 and has a good career slash line against left-handed pitching, he has generally been a below-average hitter for his career, more known for his defense and base-running than his production at the plate.
Both Stubbs and Ruggiano are right-handed hitters with the ability to play all three outfield spots, with Ruggiano offering a bit more pop (in the form of a .258/.322/.438 career slash over 1416 PA). Once Ruggiano appears in a game for the Giants, they will be the eighth different team Ruggiano has suited up for over parts of nine seasons in the bigs.
The Giants entered the season lacking in outfield depth, a situation that has only worsened with Denard Span, Jarrett Parker, and minor league signing Melvin Upton Jr. all hitting the disabled list. Ruggiano’s outfield versatility will help the bench, though he adds another right-handed bat to a Giants roster that is already lacking in lefty-swingers.