Perkins straight out admits that the Celtics set moving screens all the time because they know they only get called 15-20% of the time?
http://espn.go.com/blog/truehoop/post/_/id/16260/kendrick-perkins-pushes-the-envelope
http://espn.go.com/blog/truehoop/post/_/id/16260/kendrick-perkins-pushes-the-envelope