If you fail the flight physical at OCS, can you switch your job selection from aviation to SEAL?
Yes.
Someone in my class did it. He was
not a prior.
We went through OCS at the same time as a well-connected SEAL who assisted him.
However, I do not see any reason one wouldn't be able to submit a SEAL package even without the connections.
His process looked a little like this:
DQ from aviation with NAMI
Pass the spec ops equivalent of the PRT and throw together a package for SOAS (SEAL selection tool)
Package gets accepted to attend SOAS
Go to SOAS and get picked up for BUD/s
Go to BUD/s