Overlap between Endgame binary and Auditbeat/Packetbeat

Hi,

Since I've watched the Endpoint Security webinar I was wondering about the differences between endgame binary and AuditBeat/PacketBeat ones.
Indeed, let's assume that the endgame binary is installed on one host, it should have the same capabilities as AuditBeat and PacketBeat right?
Is it useful to install the three ones on one host?

Thanks,

Erik