If you do ESIR, you can go to any program that has an independent residency, and whoever will take you. I'm guessing it could be NRMP match for that but haven't heard for sure. This means that you can apply for the independent spots at your home institution, and if they like you, I'm sure you would get it. The only possible downside is if there are more students in your class wanting to do an independent IR residency, than your home institution can take in. Most institutions love to show preference to their own but that can only go so far.
Several institutions I have interviewed at are only seeking the number of ESIR spots that they could eventually take in to an independent residency. Again, the caveat is that there have not been any independent residence is approved, so this is all under the assumption that things move forward as planned.
The flipside of the coin is that ESIR residents may prefer to go elsewhere for the last year, thus sleaving more independent spots open to other residents outside the institution.
Sorry for the editing issues and double post, phone is not working correctly.
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