You may have 5 players with Corners SA and see how the GK scores most of them. FKs an Corners are a task assigned by the engine to 1 player in each case, you need to test your team to find these players -and too is a good idea to indentify the key players fast once season begins- by doing a friendly vs a 1* to oversize the internal programming of your team.
Like this you can detect easy the key players of your team.