In lefty Chafin, the A's get a solid bullpen arm who should provide quality in the middle innings. He may also be used as a situational left-hander or setup man. He is a good addition.

In Deichmann, the Cubs get a solid outfield prospect who struggled earlier in his career but seems to have gotten on track lately. Meanwhile, Palencia is a long-range starting pitching prospect who will need time.

Chafin is not going to provide a lot of saves but he could see more hold chances with Oakland. Still, there should be better options available in many leagues. Neither Deichmann nor Palencia need to be picked up in keeper formats at this time.