[CentOS] Disappearing Network Manager config scripts

My last test with Network Manager was a couple of years ago. At that time, 
a client that was set to boot using DHCP and NM would not set its hostname 
when such was provided with the DHCP response. That was a show stopper for 
me (none of my 200+ non-wifi clients have any configuration on them that 
identifies the machine in any way). Is this still the case?

Steve