The Mets went from celebrating Jordany Valdespin to just another night of sit and spin. If manager Terry Collins consistently awakens at 4 a.m. scarred by the same nightmare, it's understandable. The shoddiest bullpen in the major leagues is only getting worse. Bobby Parnell, Tim Byrdak and Pedro Beato handled the honors last night, rendering Valdespin's go-ahead, ninth-inning home run a distant afterthought in the Mets' 5-4 loss to the Nationals in 10 innings.