The phrase "shift gears" refers to a change in direction or focus. There are several synonyms for this phrase that can be used in different contexts. "Change tack" is often used to describe a change in strategy. "Alter course" is typically used to describe a shift in direction or movement. "Switch gears" is a common alternative for "shift gears", often used to describe a change in activity or focus. "Adjust focus" can be used when referring to a change in attention or perspective. "Redirect attention" is another phrase commonly used in this context. Regardless of the synonym used, the meaning of "shift gears" remains the same: a change in direction or focus.