Miller Park isn't as much a hitter's park as some seem to think. Baseball-reference has their multi-year park factor as an even 100, a.k.a pretty much right in the middle. It's average. It's a little home run happy, especially for lefties. Now of course Petco scores an 89, making it one of the bigger pitchers' parks in the leagues. Of course we all knew that. What's interesting (or concerning?) is that Hoffman was better on the road last year.
His peripherals still seem pretty solid...about a K/IP, 46 K with only 9 BB. HR rate was out of whack (8 HR in 45.3 IP), which is way over his career rate. It contributed pretty significantly to his ERA jump to 3.77. Could be a fluke, could end up being a trend. I guess we'll find out. Either way, it's only a 1 year deal, and it allows Villanueva to throw more innings in a 7th/8th inning, Carlos Marmol-like role.