For the GK I usually make an exception. If conceded a goal early and his rates go from red to red, is the player I might sub early in the game.
Better a -1* -2* sub player than a player with very bad rate.
I have read many posts of yours, saying that GK is cosmetic, express the roll-dice of the game and more.
If so, why to sub a GK if it's not about his performance and abilities ?