No mob is trying to "end the career" of some mid-level public servant for whimsical reasons.

The United States Attorney for the District of Massachusetts is not someone just "doing their job", it is a very high-level position appointed to serve the public interest. What people want is to prevent this person from abusing the power entrusted in them any further.

Oh look, just last week Oritz declined to run for Governor. http://bostonherald.com/news_opinion/local_politics/2013/01/...