Heritage sets match what Topps used 59 years ago, so you're looking at primary color backgrounds and floating head designs first seen in 1963, this time with lots of planned variations, subsets, and inserts (full checklist at SportscardRadio). The original version included guys named Koufax, Drysdale, and Gibson.
The 2012 card back lists all 49 pitchers to qualify for the 2011 ERA title by throwing 1 inning per team game played. Pittsburgh teammates Jeff Karstens (3.38 ERA) and Paul Maholm (3.66 ERA) both tossed 162.1 innings to barely make the cutoff. At the other end, our aforementioned Chris Carpenter led NL hurlers with 237.1 innings, despite winning only 11 games and posting a slightly-above-average 108 ERA+. (Halladay and Kershaw turned their 233+ innings of work into 19 and 21 wins, respectively.)
So how did the top 5 ERA guys for 2011 do in 2012?
- Clayton Kershaw led the NL again at 2.53, with a slightly-lower 150 ERA+
- Roy Halladay fell off a cliff to 4.49 and below-average 89 ERA+
- Cliff Lee did everything but win, going 6-9 with a 3.16 ERA and 127 ERA+
- Ryan Vogelsong won 14 games (up 1 from 2011), "despite" a 3.37 ERA and pedestrian 103 ERA+
- Tim Lincecum doubled his ERA to 5.18, worst of all qualifiers, and still led the league in starts.
If the Giants win another World Series, that Lincecum thing will drive SABR people to drink.