Cahill has been good, Strop has been great, Warren has been really good, Grimm has great stuff and lousy results, Rondon has been about the best in the league, and Wood has been great. Great does not mean "never allows a run", so you get days where the pen allows runs. Cahill has been good I agree, Strop obviously. But Adam Warren? He's given up 8 earned runs in his last 7.2 IP Yes, if you ignore the amazing start to the season and pick out his worst stretch then it can be made to look less than great.