From your dashboard, click "Club Management" on the left-hand side then select "Managers" from the drop-down menu.
Click on the name of the manager who you want to add/edit a photo for.
Click "Choose File" if you would like to add a photo or replace your current photo with a new one.
Once uploaded, click the "Edit Image" button to crop or rotate this image to make it look as clear as possible.
Then Click "Save"