RHP Jandel Gustave
Jandel Gustave is another hard-throwing righty who was called up midseason in 2019. He performed really well in his 24 innings, sporting a 2.96 ERA and 1.11 WHIP.
However, like Coonrod, his 14 strikeouts in that span are not ideal. Right now, Gustave is a two-pitch guy with a fastball and slider. If he could add another pitch to his arsenal to give hitters another thing to think about, it may help him fool batters more often.
After his solid performance in 2019 though, he will definitely be given a shot in 2020. Most likely he will be used in the sixth or seventh inning in a similar role to Moronta while he recuperates from his shoulder injury.
The Giants will need Gustave, along with Coonrod, to post similar numbers to 2019 if they want to hold onto leads in 2020. A shaky rotation may not be able to go deep into games all that often.