PITTSBURGH — The Pittsburgh Steelers have dished the flash of September for a decidedly more pragmatic approach in December. Heavy doses of Le’Veon Bell and Antonio Brown. A dash of tight end Ladarius Green. A defense that looks competent and maybe even a bit dangerous. The Steelers will gladly sacrifice the style points for the substance they showed in a 24-14 win over the New York Giants on Sunday. The result emphatically ended New York’s six-game winning streak and sent a message that Pittsburgh’s midseason funk appears to be firmly in the rearview mirror. “I just think we’re finding our rhythm,” Steelers coach Mike Tomlin said after his team allowed just 234 yards and picked off Eli Manning twice. “I think we’re gaining continuity with the mix of guys who are playing.