VCU / George Washington - Legal/Illegal Screen?

[MOofficial]

2nd half .4 on the clock - Don't know if anyone can find the video of that one?

Play

VCU has the ball for an inbounds, underneath GW goal, and able to run the end line for the throw-in. VCU teammate sets up for a screen on the guy guarding the inbounds. Defender runs over the screener as he is not paying attention, nor thinking that a screen will be set on him. A pushing foul is called on the defense.

My questions - can an offensive player set a screen with one foot in bounds and one foot out of bounds? That is what happened in this play.

A video of the play would help tremendously!