O.K. I'll chime in a little:

What I have notice is two-fold for me that I want to talk about.

The Last 15-20 years the "Crews" are smaller - granted

Older, Wiser, Jail, Death, etc. next generation not as interested in the old ways of doing business needed to adopt new ways to combat - Smart phones, Cameras. People more easily to become rats - save their own skin.

There was a last hoorah when Mayor Daley decided not to run for re-election. Mayor Daley (Old Ways to make money - all systems go) When Rahm became Mayor in 2011 everyone started to notice a change with people in the positions with the City and County. As each year past more people had to hide for cover and try to find other ways to exert pressure/compliance. As Rahm moved his people in and started doing forensics Accounting and Legal Team everywhere. A lot of people moved on grab their pensions whether with Government or even some of the Unions. Move to other Private sector Jobs.

Things had to be more creative and exert control in new areas as you understood what was coming down the pipeline that interested the new administration.

Chicago - just is adapting to the Game as rules change. Carve out a niche wherever and however you can.