I like the idea of Pomeranz. Low pressure environment, pitcher's park, has always been talented. Maybe he's finally pieced it together, maybe this is an aberration. Either way, I'd roster him, especially at the expense of Dickey.
Porcello....I was big on him last year, and it left me really soured. The sample size is too small at the moment to get a good read on his peripherals. Some stuff says bust, other stuff makes him look intriguing. If I was dropping a Dickey caliber pitcher, I'd do it, but with what you have rostered, Idk if you can make a move for Porcello. Maybe Kazmir if he keeps getting roughed up. I don't like Estrada, but with that offense, wins are a possibility.