A possible bank run at Deutsche Bank?

Deutsche Bank has a simmering bank run situation now.  Why?

Although Deutsche Bank is an investment bank and not a retail bank, it is facing a simmering cash flow problem because many hedge fund managers are withdrawing their funds from Deutsche Bank.  The hedge fund managers are afraid that they won't be able to withdraw their funds if they don't act fast as they've heard of the massive withdrawal problem at Deutsche Bank.  The hedge fund managers know that Deutsche Bank is not doing well now and has to retrench 18,000 employees.

Deutsche Bank is a bank that is too big to fail because it will affect the global banking system and is much bigger than Lehman Brothers.