What if the macro-economic situation changed? A competitor got a strong edge in a winner-take all market? A break-through technology emerged? One of an infinite

What if the macro-economic situation changed? A competitor got a strong edge in a winner-take all market? A break-through technology emerged? One of an infinite number of unforeseeable circumstances arose that required a greater than 25% workforce cut independent of any careless management? Requiring a year's severance for every employee cut in such drastic scenarios could easily make many companies insolvent.