I tend to bring top prospects up to the Majors before most other coaches do, so I do value my big league coach ratings. The only exception to that is the ML bench coach. I'm not ever going to pay him more than the 600K minimum, because I instruct my manager to not ever argue with the umps. btw, I'm sure you already know this, but the Fielding Instructor is the most important coach in your organization, because he covers all levels (info for newbie managers reading this thread.)