investorgold,
As of today, Momenta has a Balance Sheet and P&L statement that many companies would drool for, so if I think about it, Momenta's board and management can't get into any trouble when they just hold cash.
This condition has put Momenta's management in a position where it doesn't have to do anything to be deemed successful except cash their paychecks and sell their stocks. It's going to take some unhappy shareholders to shake the tree.