The phrase "are a competency of" is correct and usable in written English.
It can be used to indicate that a particular skill or ability is associated with or belongs to someone or something.
Example: "Problem-solving and critical thinking are a competency of successful leaders in any organization."
Alternatives: "are a skill of" or "are a strength of".
PLBI is a competency of the Accreditation Council for Graduate Medical Education for lifelong learning and quality improvement [ 18].
Properly performing a subarachnoid block (SAB) is a competency expected of anesthesiology residents.
In the Netherlands, GP Specialty Training is a competency-based, three-year course consisting of clinical practice training and educational tutorials, organised in accordance with CanMEDS competencies at training institutes [ 7].
It is closely related to a global or comprehensive view of the patient, which is a core competency of FM, as defined for instance by the World Organization of National Colleges, Academies and Academic Associations of General Practitioners/Family Physicians WONCAA) [ 9].
See related commentary by Preiser, http://ccforum.com/content/16/1/101 Identifying patients who are at risk of adverse events because of their nutrition status is a core competency of nutrition practitioners, recommended by clinical practice guidelines, and mandated by accreditation agencies [ 1- 3].
Doing deals "is a core competency of Citigroup," said Marjorie Magner, chief operating officer of Citigroup's consumer business, though she did not identify any specific targets.
This approach to resolving disputes is not necessarily the strength of law firms – but it is a core competency of experienced mediators.
Culture creation, then, will be a prized competency of future business leaders.
At the absolute least, we think there should be a minimum competency of gun use before people are allowed to stalk them".
