Can i change the location of a player on the pitch?

This article explains a workaround to move players around the field and if there is a difference in scoring depending on where they are located.

Unfortunately, you cannot move a player directly from one spot on the field to another.  If you wish to move the location of a player on the field, a workaround is to move the players to the bench first then sub them back in where you would like them to be.  

Please note that the location of the player (left, center, right) does not affect scoring for that position.