And a new report published yesterday by footballobservatory.com reveals which Premier League teams appear to trust youth and which prefer experience.
The data shows that Pep Guardiola is yet to properly address the problem of Manchester City‘s ageing squad.
Meanwhile, Tottenham boss Mauricio Pochettino continues to put his faith in youngsters.
Of course, there’s likely to be an avalanche of deals before the deadline tomorrow, but the age profile of the teams is unlikely to change dramatically.
So which club has the youngest squad? And what is the average age of your side’s team?
Click through the gallery above to find out.