Add Walker Buehler, and Dustin May to that list, who both had some good seasons before getting hurt. Justin Wrobleski looks like he could be a solid arm. Bobby Miller might still have time to figure things out. Some BP arms like Alex Vesia, Jack Dreyer, Ben Casparius, all who were above 1 WAR this season.
Other guys who were home grown (now I'm going back): Matt Kemp, Chad Billingsley, Jonathan Braxton, Russell Martin, Andre Ethier, Kenley Jansen,