Were they actually shirking? Were they doing all the work expected of them, just in fewer hours?
"I want to see you in your seat at your desk, otherwise I don't think you're working" is a sign of a terrible manager.
"I want to see you in your seat at your desk, otherwise I don't think you're working" is a sign of a terrible manager.
Obviously the even bigger mistake was not doing a massive company wide re-organization and throwing out all middle management. Middle management is only an asset if it is helping the business, and as is obviously the case in Yahoo, it is not.