I might be missing the mark, but I don't think this is what
@markppcli is referring to. I infer the "tasking" of the resulting amalgamated units as to being given wartime roles in the broader CMBG orbats- and being trained and equipped for purpose.
ie.
31 CBG becomes 31 Inf Bn 2CMBG, tasked to provide a full motorized/mech bn to round out the wartime Bde
32 CBG becomes 32 CS Bn 2CMBG, tasked to provide 3x each Cold war era Mortar, AT, Pioneer platoons to give the Bde wartime capabilities that we don't have the PY's for in piecetime
33 CBG is disolved and its regiments are tasked with providing sub units directly integrated into petawawa based units
In peacetime you have volunteer pools to fill those jobs at the deployed BG level