Tim Dierkes has a post up on MLBTR about the next wave of player analysis - one that includes a response from Jeff Luhnow (hey, a smart and well-regarded GM. What are we supposed to do with this?)
"The frontier from my perspective is really turning that player evaluation into player valuation. When Scott [Boras] and I have a conversation about a player, this player may be 12 runs above average and another player might be 10 runs above average, but there's so many other factors that go into whether I'm going to be willing to pay more or less for that player."
There's more to it, so click the link.