Q: Sumo elders while active

[Ryoshishokunin 323]

So, way back in the day the rules for who could be an elder or a stablemaster were much looser than today--gyoji and active wrestlers both appear in the lists of both.  

Do we know anything about how that ended for rikishi?  Obviously the few gyoji kabu eventually just got pushed out by the majority, not surprising if disappointing.