"Shifts ground" is a phrase often used to signify a change in position or stance. There are several synonyms that can be used to describe this transition. One such synonym is "adjusts perspective," which means to alter one's point of view or outlook. Another synonym is "changes tack," which refers to changing direction or approach. "Pivots" is another synonym that indicates a change in strategy or direction. "Reposition" is also a synonym that can be used to describe a change in position or stance. Finally, "remodels" can be used to indicate a significant shift or transformation in perspective or approach. Each of these synonyms provides a slightly different shade of meaning that can be used to describe a change in position or stance.