Worth noting that the average age of the squad shown there is 25.9
That shows some very good progress has been made - in the 2019/20 season we had one of the oldest squads around.
9 times that season we fielded a side with an average age of 29 or more.
Some of the youngest sides fielded in the last few seasons have been the likes of Barnsley and Brentford. Barnsley in particular. They had a tough couple of seasons where they were a bit of a pushover at times, but they seem to be reaping the benefit of it now.