This toy is a great way to waste hours.
Kevin Correia, 2012
Stats with Pirates: 4.21 ERA, 171 IP, 20 HR
Projected stats with 2000 Rockies: 7.66 ERA, 148 IP, 25 HR
But it's also kind of instructive. Correia just got a two-year deal. Do you think he would have got anything but a spring invite with those Colorado stats? I'm not going to argue the neutralizing tool is infallible, but it probably gets you in the neighborhood. You don't have to play around with Coors, either. Correia's season was the equivalent to a 5.75 ERA if he pitched for the 2007 Diamondbacks. GMs might look at Correia's 4.21 ERA and think, "Not bad." But it kind of is bad. It's so easy to forget the league context after years and years of thinking a four-something ERA is solid innings-eating territory.