There wasn't much in the the way of development squad players being coached through to the first team, I don't know who's fault that is but somebody is in charge of coaching.
It must be said that for various reasons the moment the final whistle went in the play-offs Gus' employment horizon has greatly diminished. I don't think any 'biggish' clubs will want him until he's had some success somewhere else and I think he has to realize it's mostly his own fault.