I say the opposite is true. Of the guys penciled in to start next year, let's say the lineup and rotation, how many came up through our system? 4 out of 13. Maybe this is just cherry picking this current year, but I'd guess that the majority of players are going to come from outside sources. You don't have to ever just "buckle down and trust your farm system." I'd guess in fact, that whenever possible you don't want to trust your farm system, if you can get someone who has performed well at the major league level. There are the occasional guys who turn out exactly as advertised, like Wright and Reyes (hmmmm, actually just Wright so far), but for the most part it's a crapshoot. This may come as a shock to those who were clamoring for Hernandez over Matsui last year, but minor league production does not ensure major league production. Edit: Like I said, I'm only cherry-picking this year because it's easiest for my small mind, but I'm curious of the actual ratio throughout baseball.