TCBF said:
This was 'glass ceiling' stuff from the old days. Retiring military types - invariably men - had the qualifications, experience and personality to easily leave the military and out-compete the civ competitors - often women - for senior PS jobs. This meant a lot of female talent hit a 'glass ceiling' where they would get to the point where they could compete for a good slot, only to lose it to an ex-military type who slid accross over into her stream, where she was incapable of sliding over into his (former) one. So, no more.
I am afraid I must repectfully disagree with you, the Glass Ceiling was something else entirely.
Unions had a great deal to do with it, agreed, but the military also got caught in a fight between the PSC and TBS. PSC wanted to maintain the merit principle, TBS wanted to bargain off the vacation rights, and other rights too.
Also - the Military is not "scheduled" the same way other PS departments and agencies are. (We could go into a long discussion on department of defense versus Canadian Armed Forces HQ, and then the amalgamation into the National Defence HeadQuarters, but let's not as I tend to get nauseus...

)
Separately scheduled organisations (CRA is a great example) have their own bargaining units, their own procurement rules, and their own remuneration schemes. That is why they are scheduled differently. There are also rules on when you leave the PS and how long the "cooling off" period is. These are all things which can be bargained for. National Defence has not bargained for them on your behalf.
You can always leave the forces, and then get hired as a consultant to DND. Or go into the reserves and do a class "C" call-out, or retire, travel around for a year, and then apply to the Civvie side of DND, then compete for open-schedule positions.
But it really does not have to do with the Public Service wanting to keep all those well-qualified and dynamic ex-military types out of PS jobs 'cause we're so good we'd get them all if we tried.
(although we could.)