The slumping Mets dropped into third place in the NL East, thanks to yet another bullpen meltdown that produced a 5-4 loss to the Astros in 10 innings on Saturday. Billy Wagner was the main culprit, giving up two runs in ninth to force the extra frame. In the notebook, we have more information on Carlos Beltran being dropped into the No. 2 spot in the lineup. There are also items on rookie call-up Daniel Murphy and the Mets’ need for a spot starter against the Marlins next weekend.