Passing skill has important role - to send the ball to teammate that is better positioned
, to build the squad attack.
From passing depends the length of the pass (and head pass). With higher passing skill the player can make longer passes. See the images below:
Passing accuracy also dependents from passing skill. With higher passing - the player makes more accurate passes, he delivers the ball at the exact place and player. If the skill is lower the pass error could occur and the pass will not be served on the right place. See the difference in the images below:
Feel free to skill-up
your players to the level of passing you need for their roles.