Yeah. I made a thread about this in the past. There's a lot of unknowns unfortunately but here's what we know
-Rotondo was well liked Decav capo operating in Brooklyn
-When he died the Decavs at his funeral didnt even know who put the hit out on him
-At the funeral Gotti pulled Riggi aside and instituted a hostile takeover

Put it together. Still, I wonder WHAT he did or if someone in the decav family was up to some shady shit

I also think the gambino control of the decavalcante family has been more and more solidified as the decavalcantes shrank from prison and attrition, culmininating in today when they're an east coast mirror of the trafficantes