Play 1 is just a mess. From the camera angle it looked like the white player might have pushed the falling player into the ball carrier. Which I could have lived with, but the other angles and the view the officials should have had shows its just a collision between two teammates that white has nothing to do with. Yikes.
PLay 2. Thats a great get by the official. Screener sets up screen and defender sees screen. Then when the play progress the screener changes his spot and gives the defender no time or space to adjust. Good call.