if you go back to the preseason Reds top prospects (I'll take the BA rankings), you see that the following prospects have shown very solid progress in 2008:
1. Jay Bruce; 3. Joey Votto; 4. Johnny Cueto; 5. Drew Stubbs; 6. Devin Mesoraco; 7. Todd Frazier; 8. Juan Francisco; 9. Josh Roenicke; 11. Kyle Lotzkar; 12. Jared Burton; 13. Chris Valaika; 14. Neftali Soto.
out of the top 14, only Homer Bailey (no. 2) and Matt Maloney (10) have disappointed a bit, and those two aren't clear washouts-- they just seem to have plateaued. Maloney's been on DL for quite a while.
I guess that you can argue about Francisco, but he's done better than I had expected. He'll make the jump to AA easily; as for the majors, it'll depend on whether he learns to handle lefthanded pitchers.
usually the Reds show many more washouts than this. For instance, the 2006 list had 8 next-year stumbles: 6.Travis Wood; 7. Sean Watson;8. Milton Loo; 9. Paul Janish; 11. Cody Strait; 12. Sam LeCure;13. Josh Ravin; 14. James Avery.