After neglecting to utilise their abundance of youth talent for years, the 2019/20 campaign has been a watershed moment for Chelsea.
The club entered this season with new manager Frank Lampard under the restriction of a two-window transfer ban, after they were found guilty of breaching rules around the signing of minors.
Academy graduates Tammy Abraham, Fiyako Tomori, Reece James and Mason Mount featured heavily during the first-half of the season with great success. England boss Gareth Southgate also handed debuts to Abraham, Tomori and Mount, while James made his U21 debut.
When FIFA reduced the transfer ban and allowed Chelsea to make deals in January, the west London club were expected to return to its old ways of securing expensive transfers.
The legendary Blues midfielder has handed debuts to Billy Gilmour, Ian Maatsen, Marc Guehi, Armando Broja, Tino Anjorin and Tariq Lamptey (now with Brighton), taking the total of academy debutantes for the season to eight. Hudson-Odoi, Mount, Abraham, Tomori and James have all now made over 20 total appearances this season.
Mancienne joined Chelsea as a nine-year-old and knows all too well about the struggles of breaking through the ranks at Cobham. After signing his first professional contract in 2006, Mancienne waited two-and-a-half seasons to make his first-team debut against Watford in 2009.
'When I was at the academy it always seemed almost virtually impossible to break into the team, which it was.
"But now there is a light at the end of the tunnel for the young boys and I think it is massive, it gives them a lot of hope."
"It'll be massive for England as a nation for young players coming through and getting that experience," he added.
"Just look at Germany what they've done over the years, pushing through their younger players and going on to win the World Cup with a young squad and that played together for a long-time. It's massive for the country.
Follow Andrew Maclean on Twitter: @andrewmaclean30
**Article was updated on April 27**