Good God no. Just no. Ideally he needs a Midwesterner with appeal to the rust belt (which spills over into PA). But Rubio does have the spark. Gosh he's articulate, and has superb vocal intonation skills. I have yet to see him stumble. He has the gift.
Yeah I can see Rubio, but I think the only disadvantage with Rubio is DC experience, he's only been a U.S. Senator for almost 1.5 years. However that might help the Hispanic vote.
I was focusing on his sheer political talent. In the end, that is more important than geography, or even ethnicity I suspect.