I think you have inadvertently raised a future problem for the wolves.
In order to develop their skills, GOB, Dwyer and Currie will all need game time next year. I can not see them turning from caterpillar to butterfly in one season. And when they are playing, they will make mistakes and lack the skills of our mature players - so we need to be selective in playing them, particularly for big matches. So how much headroom do we have to bring in further U20's ? Its a problem, particularly when we already have a talented squad.
Increasingly, we are seeing our U20's being DL'd to Championship sides. I suspect the trend in 2013 will be for some of them to be loaned to SL sides to ensure they gain experience at that level and to accommodate all the talent that we seem to have.
To answer you question though, I would like to see Mendelka (bad injury last season), Bridge jr, and Laithwaite (21 ?) get a run out. If he progresses at Swinton, Glen Riley as well. But there is a lot of talent out there.