The phrase "an extensive team" is correct and usable in written English.
You can use it to describe a team that has a large number of members or a wide range of skills and expertise.
Example: "Our project was successful due to the efforts of an extensive team that worked tirelessly to meet the deadline."
Alternatives: "a large team" or "a comprehensive team".
"We have an extensive team in place to handle the clinical, reimbursement and communications needs associated with this recall," the company said.
Toki Allison, production coordinator at Nozstock the Hidden Valley, explains why Ella Nosworthy should win the Leader of the Year category of the Guardian Small Business Showcase competition: Ella is an ultra-organised festival director, who oversees an extensive team of over 300 volunteers, working across construction, administration and production.
Space travel leads to many changes in the human body, many of which have been investigated since Yuri Gargarin made the first manned spaceflight in 1961 – and an extensive team provides guidance and preparation for astronauts before, during and after any spaceflight.
The current restoration is being overseen by Ascan Mergenthaler, a Herzog & de Meuron partner, in concert with the New York architect Charles Platt, of Platt Bayard Dovell White Architects; the Conservancy staff; and an extensive team of restorers and skilled artisans.
We have an extensive team for product development here.
Facebook is generally pretty careful to isolate its CEO from opportunities for bad press, Zuckerberg has an extensive team helping him maintain his manicured public image on the social media site.
A return of all salary paid and prize monies earned by the convicted athlete to the team and/or its sponsors and investors, and extensive team testing of their own athletes.
Our team collaboratively determined that saturation had been achieved through extensive team meetings and transcript review.
This process involved extensive team discussion and reflection to refine descriptive themes and develop over-arching analytical themes derived from all included studies.
In the current study we examined the role of life-long learning as an antecedent of academic engagement in a university course using student engineering project teams with extensive team-related deliverables.
Snap was an early leader, but now the industry is much more crowded with Apple, Google, Facebook and others all staffing up extensive teams focused on smartphone-based AR capabilities.
