First of all, I don't give to much attention to sa of the players.
For free kicks, I choose the best attacker of the team and set him for both sides (foot is cosmetic).
This is the F-K specialist for my team TIGRAN. A scout list player I bought.
I gave him the F-K so to score more, get more MoM and extra sp, so to keep him for some more seasons.
he is very good and most of his goals are from F-K (also has many assists, which also gives MoM titles)
He has high skills so can beat every oppo GK (even if as scout-list player had them almost equal in every category).
Click image for larger version.  Name: RACE D23.jpg  Views: 101  Size: 83.4 KB  ID: 63380

This is m F-K from my other team , NIK. He is my best attacker and successful F-K specialist too.
Click image for larger version.  Name: WILLIAN D23.jpg  Views: 96  Size: 80.9 KB  ID: 63381
This is another player who hasn't the talent as F-K or ST too. As the season ends, he 's packing
Click image for larger version.  Name: DA SILVA D23.jpg  Views: 96  Size: 81.7 KB  ID: 63382


For penalties I also have the same players. Only if someone is in a bad form, I remove him.

For corners, I use my MCs.
I don't trust my defenders as C-S (but I know some cases with talents).
I prefer to have my attackers near the goal post, so remain my two MCs.
I set one from the left side and the other from the other side and I observe who 's better. Then if someone is better I choose him for both sides.
I haven't found so far someone really good to that. Just sometimes happening one C-S to have two assists in one game (and after that, none in the next 5 games - lol).
But it's rare for every one. When I see oppo players in top 5 assists, I can't find someone unique.