"a shift of policy" is a correct and usable phrase in written English.
You can use it to refer to a change of an organization or government's policy. For example, "The company's recent announcement of a shift of policy on outsourcing indicates its desire to be more competitive in the global market."
The government said, in a shift of policy, that it would do more to identify and help vulnerable children who had already reached Europe from Syria.
In a shift of policy the Bush administration said it would take part in a regional meeting this month organised by Iraq's government, even though Iran and Syria would take part too.
North Korea, in a shift of policy, said Saturday that it would study the Bush administration proposal to offer North Korea regional security assurances in return for dismantling its nuclear program.
In a shift of policy, the Clinton administration plans to send hundreds of American soldiers to Nigeria this month to train and equip West African battalions that will then be dispatched to Sierra Leone to bolster beleaguered government troops and United Nations peacekeepers there.
In a shift of policy, the Graduates General Congresss was launched in 1938 as a forum for the intelligentsia of Sudan to express their opinions and as an alternative voice to that of the tribal leaders, who had become discredited.
He has led campaigns in previous positions on aid, education and child health, contributing to changes including a shift of UK policy on aid conditionality and the establishment of the Global Partnership for Education.
Using deferred prosecution agreements as an alternative to charging companies with crimes is not a "major shift of policy" for a Justice Department "once known for taking down giant corporations".
The issue, then, is not whether Roma have been targeted — they have — but whether this week's about-face represents the pique of an individual commissioner or a fundamental shift of policy in Brussels.
A senior US diplomat will join nuclear talks with Iran this weekend, marking a notable shift of policy by Washington towards engagement with Tehran.
It was a dramatic shift of policy for the U.K., which had always championed enlargement of the EU and the free movement of workers across national borders.
UN-brokered peace talks in Geneva are scheduled to resume in two weeks but are unlikely to do so without a significant shift of policy.
