The part of the sentence "improvements are required" is correct and usable in written English.
You can use this phrase when you want to express that something needs to be improved in order to be more effective or successful. For example, "The current sales process needs some improvements in order to be more efficient."
From the perspective of institutional design for collaborative and sustainable water planning, seven major improvements are required: (1) Provision of detailed policy guidelines to support general legal requirements, particularly practical advice for interpreting and applying the precautionary principle.
3 Also, for those in care, improvements are required along every step of the care cascade to improve health outcomes for both individuals and the population.
Technology improvements are required.
First, significant transport improvements are required to support growth.
Their coach, Lee Radford, will know, though, that with a punishing Easter programme ahead further improvements are required.
On the basis of its findings, the commission has awarded DfID its second-worst rating – amber-red – meaning that significant improvements are required as "the programme performs relatively poorly overall against Icai's criteria for effectiveness and value for money".
Plenty of improvements are required before Portugal on Saturday, though they may benefit from having a very winnable game last, against Iceland, which would likely still be enough to advance.
Several improvements are required before LEDs can compete with incandescents in general lighting applications.
But if this potential is to be realised, both qualitative and quantitative improvements are required.
Substantial improvements are required in the field of conflict of interest" in Romania, it said.
However, improvements are required before optimal utilization in vivo becomes routine.
