It's a small sample size, granted, but Johnny Cueto sure seems to be a better fit in the National League than the American League. In 19 starts with the Cincinnati Reds last season, Cueto went 7-6 with a 2.62 ERA and 0.93 WHIP. After a July trade to the Kansas City Royals, those numbers ballooned to 4-7 with a 4.76 ERA and 1.45 WHIP in 13 starts.
Still, Cueto helped the Royals win their first World Series title since 1985 and parlayed that into a six-year, $130 million offseason deal with the San Francisco Giants. The 30-year-old Cueto not only returns to the NL, but gets to pitch at AT&T Park, one of the majors' most pitcher-friendly ballparks. Through eight MLB campaigns, Cueto's average season is 12-9 with a 3.30 ERA, 1.18 WHIP and 146 strikeouts. If he gives that kind of production, he'll be valuable, but if his strikeout rate improves after last season's dip, he could end up being a mid-round steal.