Ettore Messina via Jon Giesbrecht
Drills to work on ballscreen defence. Although pick and roll defence depends on quickness and mobility of your players, and ability of your opponents, there is a need for basic rules. They force 2 on 2 play defensively as much as possible.
Good teams know when to be very aggressive (deny) and when to contain/protect (shrink) during a defensive possession, don't let the offence get comfortable.
a) 2 on 2
Cones restrict space. The screener sprints out, his defender communicates the coverage on the first step.
Defending the 5-man, show or play flat (zone, shown); defending the 4-man, show or switch, can't play flat against a 4 popping, will never recover in time.
On a middle ballscreen, X1 gives the ballhandler only one option, shades to his weak hand, then "rear-view" contests (chase over the screen). If 5 re-screens, X1 rolls under, off the screener, and again shades weakhand.
A flat ballscreen is the most dangerous, very important to give only one option.
Game progression - force the ball where there are two defenders (first and second line of help) to limit how much the big helps.