It depends on how old/experienced your players are. If you like your ML team to be comprised of experienced veterans, they are going to develop very little, if at all. So the coaches don't matter. But if you like to get your young potential All-Stars/HOFers up to the majors as soon as possible, you want good coaches up there.
And as brianp said, the fielding instructor is important regardless, because they coach all of your organization's levels. That's why you'll often see FIs go for $3M or more.
7/2/2023 5:05 PM (edited)