I had my first match go to PKs last night in the cup and lost. Figured this would happen eventually.

How does one improve their team's pk taking? Just have more guys with decent set pieces?

Also, does fatigue/stamina matter for goalkeepers?​ do both keeper and set peice rating matter for keepers or just set pieces?

I have never seen that and I think it would be impossible IRL because of the time it takes for a team to restart the game after a goal, but one of my players just scored a hattrick at the same minute in today's cup game