The phrase "a shift in the focus of" is correct and usable in written English.
It can be used when discussing changes in attention or emphasis within a particular context or subject matter.
Example: "The recent report indicates a shift in the focus of our marketing strategy towards digital platforms."
Alternatives: "a change in emphasis on" or "a realignment of attention towards".
Those limits, he said, along with a shift in the focus of bank regulation from rule-making to risk-monitoring, should minimize crises.
When asked whether the shift in personnel signaled a shift in the focus of Homeland Security away from the threat of terrorism, Ms. Napolitano said, "Absolutely not".
Since the increase in attacks by Palestinians using knives, guns and vehicles there has been a shift in the focus of complaints.
However, in the early 1980s, changes in ABRO leadership and a shift in the focus of government research projects forced Wilmut into the realm of genetic engineering.
Japan's prime minister, Naoto Kan, ordered a shift in the focus of relief efforts from search and rescue to caring for an estimated half a million people who have been evacuated from provinces affected by the earthquake and tsunami and many others who have been left homeless.
If Moore was replaced by her Liberal rival Forster, it would likely see a shift in the focus of the council away from the residential "villages" Moore has championed and towards business, and would result in a council less willing to set out a different direction from the state Liberal government.
This would require a fundamental shift in the focus of New Zealand agriculture.
This suggests a shift in social focus of the adolescent from family to school social environment.
With this shift in perspective, the focus of discourse remained on subordination, patriarchal oppression, and victimization.
A shift in focus has occurred from 'end-of-pipe' to prevention and process integration.
