There maybe nothing wrong with the development strategy, but as with all strategies they have to be executed well. Last summer recruitment, tagged as whatever strategy, was absolutely awful. To think you recruited from the Prem and Wigan only to discard them to part time clubs. Then more traditional signings of known players and flawed profiles have been equally dire, centre halves who could not defend, a Swede who doesn't even seem to know what to do or even where he is and Nolan who seems to have left the game altogether!
The fear is that by selling worthless talent, somebody may see some success. I can't see you getting away with that trick for long. I'd sell Hawkes and Bristow who are better but easily replaced with frees. Although i recall Little sold Taylor and then tried to wing it with loanees, having let Hall go he replaced an outstanding right side with nought. Don't repeat that!!!