I've recently heard that all 3 moved into different industries...probably a smart move. But still don't know what motivated them to leave. They were all well-respected and seemed to be on the fast track.
I think if truth be told, they figured out that the DM is an obsoloete position and provides no real value. The culture of this company is called Kiss up and its gotten old. Nothing lasts forever.
I heard the compliance police may have dug something up...either way, it doesn't matter...you can't get a serious reply on this site anymore. It sucks.