Bomarc,
when I said ranking issues, I didn't mean real grief between the two. I meant that, if the senior pilot was PF, the junior would have had to overcome a hurdle to tell his checker that he thinks his procedure was wrong. I assume that this situation would have been trained in the sim before (one reverser inop, maybe even into a short, wet strip) but still there's a chance that the new guy will give the more senior one credit to do things that are "different".
In short: maybe the PNF assumed that the PF knew what he was doing due to his vast amount of experience on type.
pj