How well is this type of effort going to work in the long run? Does this just drive the trouble makers someplace else? In this case can people tell if the bad element generally lived in Westwood, or were they coming in from other areas? If they are local, this may have a lasting effect. If they are not from Westwood, then that bad element will find someplace else to go.
I like this idea, but how much time does it take to make a lasting effect? Once this group stops, will the street corner just go back to the way it was?