Hamels had a 6.41 ERA, a 6.16 FIP and a 4.49 xFIP when pitching in Texas this season, but a 2.93 ERA, 4.17 FIP and 3.83 xFIP on the road. That is why the Cubs took a chance on Hamels, and that regained velocity which declined earlier in the season. Granted, Theo and the Cubs likely weren't expecting Hamels to be this good, but it's not as if there were no reasons to acquire him. So his road FIP put him right around Kyle Hendricks, Gio Gonzalez and Jake Odorizzi's overall numbers. His ERA was good on the road but his peripherals were just fine. Also Wrigley Field is much closer to a hitters park than a pitchers park so to expect him to match the road numbers which included a division with 4 teams in the bottom half of the one park factor I could find (http://www.espn.com/mlb/stats/parkfactor) seems odd. He was pitching at Oakland and Seattle which are opposite ends of the spectrum of Texas. Even Houston and Anaheim rated 18 and 20 on this list. i know theses lists are far from perfect but to say hey his road numbers were good so obviously he would be good is really overstating it. Texas is a hitters park but so is Wrigley. In the division he will pitch at more hitter friendly parks in Milwaukee and Cincy than he did in the AL West. The biggest factor is probably a veteran who went from a terrible team to a good one and got some life back in him. Maybe it sticks for the rest of the year, or maybe he fades hard like Jon Lester has. It has been a good pick up so far but you cant just take road splits and say here is why it was an obvious move.