The Bill Ackman problem everyone forgot about is coming back to bite him and Valeant (VRX)

And now some bad news for billionaire Bill Ackman, the founder of the hedge fund Pershing Square.
Valeant Pharmaceuticals, the drug company whose 90% stock-drop disaster has been pulling down Ackman's portfolio since October, announced on Monday that three executives would leave.
The departing executives were of no small importance at Valeant. Pavel Mirovsky was the head of the company's Europe business, Laurie Little was the head of media relations, and finally Robert Chai-Onn was the company's