An unanswerable question that has puzzled pundits, managers and fans alike is: what's more important, energy or experience?
Here are two teams, one with Under-21s and one with Over-33s from the Premier League. It's hard to tell whether the "oldies" would be able to cope with the energy and pace of the youngsters through sheer guile and know-how - and please let us know your views on who would win!
Goalkeeper: Damian Martinez | Arsenal
The Gunners' shot-stopper has proven fallible in the Capital One Cup.
Right-back: Phil Jones | Manchester United
Jones has performed very well for both Manchester United and England.
Centre-back: Matija Nastasic | Manchester City
Nastasic earned a name for himself in a quality first season.
Centre-back: Steven Caulker | Tottenham
Caulker gained a call-up for England after good showings for Spurs.
Left-back: Massaido Haidara | Newcastle United
Haidara's early Newcastle career has been marred by a horrendous injury.
Right-wing: Raheem Sterling | Liverpool
Sterling tore defences apart in the early months of the season for Liverpool.
Centre-midfielder: Jack Wilshere | Arsenal
Wilshere has come back even stronger after a long injury lay-off.
Centre-midfielder: Oscar | Chelsea
The Brazilian has shown why so many clubs fought hard for his signature.
Left-wing: Alex Oxlade-Chamberlain | Arsenal
Oxlade-Chamberlain has displayed remarkable consistency for a youngster.
Attacking-midfielder: Coutinho | Liverpool
Coutinho has been a bargain signing for the Reds.
Striker: Romelu Lukaku | West Brom
Since being loaned out to West Brom, Lukaku has shown Chelsea his ability.
Goalkeeper: Brad Friedel | Tottenham
Continues to perform outstandingly for a 40-year-old.
Right-back: Phil Neville | Everton
Has once again led Everton high up the Premier League table.
Centre-back: Rio Ferdinand | Manchester United
Ferdinand has been crucial to Manchester United's title-winning season.
Centre-back: Jamie Carragher | Liverpool
Set to retire at the end of the season, Carragher leaves the Liverpool supporters with great memories.
Left-back: Ian Harte | Reading
His set-piece deliveries have not been enough to keep Reading in the top flight.
Right-wing: Damien Duff | Fulham
Started the season very strongly but has faded since.
Centre-midfielder: Paul Scholes | Manchester United
After an injury-hit season, Scholes looks to be losing his touch.
Centre-midfielder: Frank Lampard | Chelsea
Despite amazing displays, Lampard still hasn't earned a new contract.
Centre-midfielder: Rory Delap
Loaned to Barnsley this season, the long-throw specialist may have played his last game for Stoke.
Left-wing: Ryan Giggs | Manchester United
Giggs continues to amaze everyone with more goals and assists.
Striker: Jason Roberts | Reading
Roberts has shown glimpses of quality this season.
Write for GiveMeSport! Sign-up to the GMS Writing Academy here: https://bit.ly/12nAsNY
DISCLAIMER: This article has been written by a member of the GiveMeFootball Writing Academy and does not represent the views of GiveMeFootball.com or SportsNewMedia. The views and opinions expressed are solely that of the author credited at the top of this article. GiveMeFootball.com and SportsNewMedia do not take any responsibility for the content of its contributors.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms