I can't agree that Warren has been good, and I wouldn't argue if someone pointed to Cahill and Wood's peripherals, but in spirit I'm with you. The Cubs have one of the best relievers in the game at closer and a very good setup man. Neither Cahill, Wood, nor Warren has been as good as they were last year so the middle innings aren't quite as rock solid, but it's still quite good. By giving up 3 runs in 4+ IP today, they upped their ERA for the month to 3.66, 11th in MLB/5th in the NL.