I think you have to have different running plays – we’re often complaining the Giants are too predictable. If they sometimes run Jacobs up the middle, sometimes rune the stretch, sometimes run off tackle, etc. it should be harder for opposing defenses to defend our offense.
Anyway, this article talks about Jacobs being the Giants main runner:
“I think this guy can [run the stretch], he’s faster, he’s faster than Tiki,” Gilbride said. “It was his ability to cut back that made Tiki special. That’s what I don’t know [with Jacobs]. But we’re definitely going to have those plays. At this point it still will be a core play, a base play, for us.
“Will it be as good a play? That remains to be seen.”