if you want that many rookies, you are looking at another tank. look at finnie, danielson, kasper, and asp this year.
finnie started strong when he was playing with healthy larkin/raymond but fell off dramatically. every other rookie was bad to borderline unplayable.
To the point jason makes, its possible that yzerman always saw this season as another bridge year. blood some rookies and they'll be ready for larger roles next season and the year after.
i question whether that's true and the real reason the rookies havent been brought up is because theyre injured (mazur, buium) or not developing fast enough to make a difference now (danielson, asp), or blocked (cossa).