The phrase "a gap in their implementation" is correct and usable in written English.
It can be used to describe a deficiency or shortcoming in the execution of a plan, project, or system.
Example: "The audit revealed a significant gap in their implementation of safety protocols, which needs to be addressed immediately."
Alternatives: "a flaw in their execution" or "a deficiency in their application".
Despite evidence to support the use of guidelines, there remains a gap in their implementation [ 7].
Special attention was given to the role of stakeholder interplay in the emergence and formulation of these policies, as well as gaps in their implementation.
By systematic implementation of the SMRAC model, health systems can track and measure progress and gaps in their implementation and identify strategies for further reduction of abortion-related morbidity and mortality in Bangladesh.
32 In some areas, this has resulted in a gap in the service implementation of HIV care pathways the link between the two.
7 However, there is a gap in the evaluation and implementation of parenting programmes for children with features of ADHD in everyday community settings such as schools.
Findings from this investigation revealed a gap in the standardization and implementation of infection control practices for midwives during home water births.
The implication is that there is a gap in funding sources for preparing high-quality implementation guides and related resources, and mechanisms for their distribution and maintenance; whether this should come from research funding or from policy agencies is arguable.
There is a gap in the evidence base on how substantive policy implementation can be achieved.
A code of conduct addresses a critical gap in the implementation of the SDG 14 by defining a socially just foundation for marine conservation.
I realised there was a huge gap in our implementation plans.
The article points out a major gap in the implementation of the Affordable Care Act: Many specialty providers and hospitals that cancer patients rely on are being left out of insurance exchange plans.
