Screening vs Guarding

[Camron Rust]

I'm going to stir the pot a little....

Guarding is only performed by the defense (by definition).

Screening can be performed by either team...although it's almost exclusively performed by the offense.

Example of defensive screening:

B1 on A1. A1 dribbles the ball off his foot. Both turn toward the ball which has bounced behind B1. B5 is going for the ball. B1 see this and, rather than going for the ball, screens A1 to give B5 enough time to get the ball. B1 has his back to A1.

That sounds a lot more like a screen than guarding to me and B1 is on defense...until B5 picks up the ball.