I'm not saying he will be as good a middle IF as Jeter, but if Jeter deserved a starting job after what he did in the minors, then I suggest you go on over to thebaseballcube.com and look up their respective Minor League stats.
Even if Pedroia has a bad or mediocre ST, I still think he should get the job, for a couple of reasons. One, a bad ST is a bad month, everyone has those and they tell you nothing in the long run. Two, he's done not just well, but extremely well for a middle IF at every level -- the hiccup in AAA last year was due to a wrist injury. Three, Cora is capable of at least average production from 2B, so they do have a backup plan. Four, a Tony G type player is always available, and they don't cost much in terms of talent.