In evaporation, the more energetic (i.e. warmer) a water molecule on the surface of an object is, the higher its chance of it turning to vapour.
The higher the wind speed across this surface, the faster these warm molecules will be blown away.
This is the concept of evaporative cooling.
The same applies when a company starts to fail, though there is an additional feedback cycle which compounds the problem. First, the most energetic molecules staff depart. These are the ones who can see a future for themselves outside of their current employment — and there is a high correlation between these people and those who are most valuable for an organisation. So the company becomes slightly worse due to the better people leaving. But it’s an exponential effect: it will rapidly get worse unless steps are taken to improve things. Eventually, the company stagnates as all of the interesting and innovative people have found alternative employment and only the boring ones are left.
So, the moral of the story: the more a company blows, the faster its employees leave.