If a player is good enough and ready then they'll get a chance no matter who the manager is. All managers want to win and will utilise their best team in doing so (except those like Dimmeh who have ulterior motives).
So the people involved in getting the player to that point, making them that good and that ready are the important ones. The one giving them their start is irrelevant as they'll just end up playing for another team if they don't play (unless there signed to Chel53a on a long contract just so that they can collect all the good, young players)
The amount of current league 1 players who were head and shoulders above their premiership peers but never got a chance is staggering.
If AVB had never left we would never have seen bentelab, Mason, kane where they are today. Of course they will make mistakes and you need to work with them properly, but talent and temperament wise we are now seeing that Young players in this country ARE good enough if given the chance. Southampton have shown the way and we have proven that wasnt a fluke by giving opportunities to a few young players who had basically been written off by most. There are now another crop who look the nuts who hopefully will become part of the squad very shortly.
If there isn't a commitment to giving young players a chance then everything else is irrelevant. 2014 saw our philosophy change and I hope that we keep to it.