Sustainable basement insulation / Discussions

...basements And the short story is – We prefer mineral wool insulation on basement walls as it handles moisture better that fiberglass, but also don’t put a vapor barrier on right behind the drywall. If there is moisture in the wall it is way better to let it escape so it doesn’t rot the wood. Exterior insulation on base...

...basement will be insulated in the future. My question is: can we use spray closed cell foam insulation in the current wall framing followed by drywall to achieve proper vapor barrier against the block and insulation? We'd rather not remove the 2x4's (and metal tracking) to get 2" of rigid foam board against the block a...