So often on this site, statements [can] come across as though such projections are a total certainty, and therefore a prospect's got the same or greater value as a proven MLBer. I definitely took care to say "could", because you're 100% right. Ellsbury certainly has value, in that he's shown an ability to get on base in the toughest division in MLB, & clearly is an elite basestealer. I think Lo Cain has a higher power ceiling than Ellsbury, so even if he wouldn't perennially match a .350 OBP, his SLG would make up for some or all of the difference. Cain clearly can't match Ellsbury on the basepaths, but I prefer a bat to a basestealer. Ellsbury at this point has pretty much shown that he's not a positive with the glove in centerfield, so that cuts into his value. It's just not that hard to find corner OF bats that can put up a mid-.700s to low-.800s OPS, and like I said I think Cain absolutely has the ability to do that, & relatively soon. Whether he will or not is, of course, the whole thing. Cain's progression through the minors really is quite similar to Ellsbury's rise through Boston's system (of course Lo was drafted out of H.S., Jacoby out of college). At age 23, both players repeated AA after posting .800+ OPS tallies there the season prior. The main difference is that, in Cain's age-23 season, he suffered a season-ending knee injury in April, while Ellsbury stayed healthy in his & earned a promotion to AAA. Lo's progression as best I can tell is really only one season behind Ellsbury's, and it appears to be so completely due to injury. If he beats up on AA pitching like he should, he'll be in AAA near the All-Star break, & knocking on the big-league door in Spring Training 2011 at the latest. I apologize if I've posted about a bunch of stuff you already know, MNBrew. Just thought the similarities btw. Cain & Ellsbury were interesting. If the Brewers had a need in leftfield, I think Ellsbury would make sense to ask about from Boston, even though he will be getting more expensive very soon. However, since that position is locked up for roughly the next 5-6 seasons, I'd rather them look for something else in return for Fielder. I am not familiar enough with Boston's MiLB system to speculate much further, though. From Jim Callis's Baseball America Top 10 from this past offseason, it looks like Casey Kelly would be my #1 target, but I have no idea whether that's fair value or not.