It's not usually a problem. Big companies are inefficient and over-conservative (because they're risk averse and short-term oriented). Thus unsurprisingly they

It's not usually a problem. Big companies are inefficient and over-conservative (because they're risk averse and short-term oriented). Thus unsurprisingly they are bad at adapting, and sometimes there's a correction needed. Eventually the market will give them enough incentive to either get their shit together or a competitor will eat their lunch. (And McKinsey will just provide consulting to that one.)