The shortcomings of traditional football referees

1. The referee didn't understand the rules enough, didn't judge according to the rules, and missed the disciplinary punishment.

2. The referee's enforcement of the rules is not strong, and the referee's scale is not accurate, which leads to improper use of disciplinary punishment.

3. The referee's leading role in the competition field is unfavorable, and the law enforcement consciousness of "taking me as the main" is not strong, which leads to too many times of relying on VAR or AAR to correct the penalty in the key penalty.