The phrase "a group of central" is not complete and lacks context, making it difficult to determine its correctness in written English.
It could be used in contexts where you are referring to a central group of people or elements, but it needs additional information to clarify its meaning.
Example: "A group of central figures in the organization met to discuss the new policy changes."
Alternatives: "a central team of" or "a core group of".
"The timeline is very long," he said of new rules formulated by a group of central bankers and national bank regulators, and endorsed by leaders of the Group of 20 countries.
Mr. Hildebrand is vice president of the Financial Stability Board, a group of central bankers and regulators that plays a leading role in recommending bank regulations to the leaders of the Group of 20 nations.
A group of Central American migrants – mostly Hondurans – climb a metal barrier on the Mexico-US border near Tijuana.
On Twitter and at campaign rallies, he has stoked fears about a group of Central American migrants approaching the US border on foot, describing it as an "invasion".
This is very much the Gosplan approach to life; a group of central planners get together and decide what should happen.
Europe signed separate free-trade agreements last month with a group of Central American countries, as well as Peru and Colombia.
They demanded that the Financial Stability Board (FSB), a grouping of central bankers and financial policy makers, come up with a plan.
By Geoffrey T. Hellman The New Yorker, October 31 , 1953P. 23 Talk story about a tour with a group of Central Park bird walkers.
The New Yorker, October 31 , 1953P. 23 Talk story about a tour with a group of Central Park bird walkers.
The two women are part of a group of Central Saint Martins graduates, which also includes Giles Deacon and Katie Grand – who came to prominence in the early noughties with a playful, pop sensibility sense of style.
In a migrant shelter in Ciudad Juarez, a group of 10 Central Mexicans and Central Americans watched a soap opera while Bush's speech was broadcast live on the other channel.
