Yes, we all know Santana was an established veteran when he came to the Twins but the guy has become a much better pitcher since joining the team. 2005-2014: 229 games, 99 ERA+, 4.26 FIP, 2.8 BB/9, 7.2 K/9 2015-2017: 49 games, 119 ERA+, 3.94 FIP, 2.8 BB/9, 7.1 K/9 What, if anything, has changed about this guy? Other than the actual runs allowed, his peripherals look close enough to be irrelevant. But he's been playing in front of some pretty questionable defensive alignments and has posted drastically better runs allowed numbers since becoming a Twin. Normally, I'd say "eh, whatever, stat noise" but we're talking about close to 1 2/3rds seasons now and he's picking up 2017 where he left off in 2016. What gives?