First rule of business...don't put all your eggs in one basket.
Second rule..be competitive.
If a company can't trade and win contracts there is no future.
Woolworth's being replaced by Poundland is a good example.
Malcolm Walker was sacked by Woolworth's in Wrexham because he opened a small shop in Oswestry selling frozen peas.
Today he runs an operation in most UK towns and his former bosses have long gone.
He own the Iceland chain.