The Chicago White Sox were hesitant to officially name Lucas Giolito as the Opening Day starter for 2020. It is a baseball honor to take the mound on that day for any club in the league. There are only 30 guys who get to be an Opening Day starter each year so it is easy to see why it is an honor. That means that your coaches see you as the ace of the staff.
It is clear that Lucas Giolito is that guy right now for the White Sox so he should be on the mound on Opening Day.