Every year someone will underperform, get hurt, and not be at a level of what you thought they should be. If you're trying to scratch out a wildcard or hope for some luck to win the division, you are gambling on long odds.
I know that they have a "deep" farm, but they are plagued by the same issues. Lots of good and not very much great. Maybe Jed can find the right combination of guys to make it work with the Cubs, but does anyone see a great team nucleus anywhere in the system?