Help with Coach Next Pitch for a player

When you get the coach next pitch, how do you use it on someone on your roster before they retire? I tried looking on google and the results don't match what I'm looking for.

This is a MyGM question.

bump.

I think when he is about to become free agent, on off season, when it comes to "My Free Agents" look for that player and then try to use Cocach next.
It is the same menu where you use Grass isn't greener