A couple more examples. I love the game and am not complaining - just trying to figure this out. In the first video the baserunner was out because he did what the 3B coach told him to do. Again - this is manage mode. Baserunning and fielding all auto. My team running the bases.
In this video he is out because he ignored the 3B coach.
https://www.youtube.com/watch?v=hU7s3yC3iCA
In this video the 3B coach does nothing. Just stands and watches as the runner tried to score from second base on a sacrifice fly. You can see the shortstop catch the ball as the runner is stepping on third base.
https://www.youtube.com/watch?v=Qmg86l2P8tk
My theory is the third base coach is just eye candy and the runner's baserunning attribute what matters? In the first video the baserunner did what the coach signaled. Second video the baserunning ran through the stop sign. Third video the coach gave no signal.