'areas needing improvement' is correct and usable in written English.
You can use it in any situation in which the speaker wants to express that there are certain areas which can be improved upon or need work. For example: "After looking at the results of the paper, the professor identified a few areas needing improvement."
The report identifies other areas needing improvement: reducing cancer screenings late in life and improving end-of-life care.
Also fine-tuning the quality of supervisors' assessments is potentially resource effective by improving the assessment built into daily work and identifying areas needing improvement.
That can help to identify both pockets of good practice and areas needing improvement.
Managers at Lockheed Martin use an automated system to collect timely performance-review data and identify areas needing improvement.
He acknowledged that there were areas needing improvement; for example, pilots are supposed to be retrained annually but are allowed a one-month grace period.
"As soon as it became clear there were areas needing improvement, those improvements were made and they have been in place for a significant period of time.
Mike Richards, the chief inspector of hospitals, praised the quality, safety and innovation at the trust, although some areas needed improvement, including waiting times for surgery and outpatients.
Our analysis of California's rail transit systems discovers which transit stations serve as hubs of thriving, walkable areas that encourage residents and workers alike to ride the train, and which station areas need improvement.
A new analysis of California's rail transit systems discovers which transit stations serve as hubs of thriving, walkable areas that encourage residents and workers alike to ride the train, and which station areas need improvement.
