Why do Su Qun and Yang Yi never participate in basketball commentary programs together?

These two people are contradictory, which has been mentioned in many articles on the Internet. Teacher Yang's evaluation of the ball is emotional, often impassioned and indignant, but he said nothing. This is even more obvious in his articles. He often uses many inexplicable metaphors, which is a bit out of the basketball level. Compared with the academic school, Mr. Su will use a lot of data and legends to analyze tactics and compare styles of play.