10: Andy Pettitte
The “Core 4” begin here with Andy Pettitte and his 252 career wins (215 as a Yankee). His career ERA of 3.87, 2,400 strikeouts, and a career winning percentage of .627 might not blow your mind but they are upper tier. Many believe Ron Guidry belongs above Pettitte, but he is all-time postseason leader in wins with 19 and was part of five World Series championship teams. He is a three-time All-Star who finished in the top-5 of the Cy Young voting four times. That edges him into the top-10.