Bullpen's bumpy ride continues in series loss

Angels right fielder Kole Calhoun hangs on the wall after the Mariners' Shawn O'Malley hit a go-ahead home run. (AP)SEATTLE -- Only half of the Angels' current eight-man bullpen was on the Opening Day roster. The closer, Huston Street, is on the disabled list for the second time. The setup man, Joe Smith, has been traded to the Cubs. And three of their most important relievers -- J.C. Ramirez, Deolis Guerra and Jose Valdez -- were designated for assignment earlier this season.

It has all equated to a volatile, unreliable bullpen for Angels manager Mike Scioscia, who hasn't been able to establish roles for any of his relievers. On Saturday, he watched Valdez and Guerra surrender four…