I really don’t think Rand will do anything for Romney’s ticket. First of all, whoever runs with Romney will be putting paid to their political career. Mitt won’t win against Obama and you can take that to the bank. Too many people have already dropped out and no longer care. This has been a long and dirty battle and nobody wins.
And the GOP-e would hardly cry over Obama 4 more years if they control Congress (they think the electorate will give them the Hill to keep O in check--I say good luck with that hare-brained idea).
And a VP Rand will get TONS of media coverage for future political aspirations.