Sticking with the Pentangeli meeting with the Rosarto Brothers. Its my understanding that Pentangeli took over Clemenza's spot upon his demise (that was no heart attack). I would think that for a person to be elevated like that. They should be well experienced in the "life". With this being said. Why did Pentangeli tell his body guard Willie Cici to wait outside? He knew that the Rosarto brothers were bitter rivals. What caused this lapse of security? Especially with the meeting beginning with him be insulted with the C note?