I am totally against these development squads until lads hit 15 or 16. The format for the Easter competition from a few years ago when N/E leagues played against S/E and West was a super competition ran around Easter. The same could be done at U/14 to introduce lads to each other and give a taste of what it would be like.
On the original post I think clubs need to be more involved in what is happening, more in tune with the teens. Our club doesnt have policy on this but ther era a group in the club who rotate around U/14 - Minorand the aim is to develop skills, fitness and game play play. It seldom works that people can come all the way through from U/8 to minor but that said 2 of our best ever juvenile teams done exactly that. But you had 3 very different people involved in coaching and a manager who brought it all together.
What I see now involved in a lot of clubs (including my own) are people who are only there to look after their own kids and ego’s. I hear this at work from lads in other clubs also. But not all clubs have people willing to put in the time.