If my players won't yell at me at the top of their lungs when they are frustrated, mad at themselves, mad at their progress or mad at me.......I don't want to coach em.
They don't show enough interest.
In fact, you can learn real quickly which ones have the determination to see it through.
I don't like wasting time with the others.
It's called the Arena. If your skin is too thin....don't enter it.