Except low aggregate demand recessions do no such thing. It's often the opposite. Recessions keep alive inefficient manual labor intensive, low tech service industries because they make available cheap unemployed/underemployed labor. That's on top of the inefficiency of people doing nothing and living off of unemployment benefit/welfare.

Under performing companies get much more efficiently "creatively destructed" in an economy that is running hot where only the more efficient, well tooled businesses can afford employees at tight labor market wages. On top of this, fewer human resources are left wastefully idle.