Who do we hire to plan and manage this process to ensure we have adequate cash flow? Why would any small or medium size business take on this overhead? When some other part of the financial system endangers whatever mechanism we were using here, will you be back asking why we didn't just keep money in a bank somewhere?
I'll be blunt: You're not that smart. You're not that experienced. You're not an expert on managing "FDIC risk" even if you read about it this weekend.