It's an option. I'd be more inclined to have the Europeans put up the heavy forces for their own defence, and have countries like the UK and Canada find other useful ways to contribute. That's just me though.So here's a thought. Put the better part of a heavy brigade's equipment into Europe. Keep a good portion in Canada as training equipment. Organize a manning ratio of enough Reg F to provide all key leadership, technical, planning etc roles into capable hands but man the largest bulk of the force with reservists. Do flyover Milcons. Betcha your recruiting and retention and volunteers for exercises would spike.
There are literally dozens of things that you can do if only you're prepared to pull the thumb out of your butt and try something better. But noooo ... we'll keep on muddling along the way we always have, fine tuning stuff the way that has failed over and over again in the past, until the NDP get elected and shut everything down (or the Libs figure out they could simply shut down a brigade and a fighter squadron and five ships, save a five billion a year to spend on child care or a needle exchange or whatever, and no one would miss it).
You are correct that there are literally dozens of things we could do, and also I believe you to be correct that we will keeping fumbling along status quo. At least it makes for interesting discussion.