I won't quote your whole post, but the risks/flaws you identified (except maybe Greinke's mental issues) are common in pretty much all free agents. They tend to be on the wrong side of the age curve, they may have been overused in the past, etc. To me, these risks are different than the ones we were presented with for guys like Fielder, Darvish or Cespedes. In Fielder's case, his body type has been documented as one that declines extremely early. For Darvish and Cespedes, there's real questions (particularly Cespedes) as to whether they can be successful in major league baseball because they played in foreign leagues. I think Pujols had more red flags than usual due to the huge contract he was going to command, but I think that argument has been made by both sides numerous times and it's not really worth bringing up again. There's one thing to use free agency to "supplement" what you already have, I totally agree. But what people were advocating, and why they are upset now, is more than simply supplementing the roster. It's devoting a large percentage of your payroll for the next several years for one or two players. If you're going to do that, you better be damn sure they're worth it. Otherwise, you'll end up with the 2010 Cubs.