They talk about how many men those two guys had under them as they were capos but doesn't mention any other capos.

But then they talk about those two breaking off and starting their own families... If they did that how many men would the Corleone family have with out those two capos? It doesn't seem like they would have too many without them.

Also was Sollozzo in the Tattaglia Family? Or was he also a boss of his own family?

Thanks guys! I am about 100 pages into the book but I have already seen the movie a few times.