The new set up would see a third member added to the crew under the title of Video Review Official. This former or current referee would work as an extra set of eyes and communicate with the on-field crew to discuss penalties and other facets of the game which do not fall under the umbrella of challengeable calls.
The CFL’s football operations department has reviewed video from last season and found more than 150 penalties that should not have been called. One way the CFL is looking at eliminating many of these errors is with the new video official, who would have access to all broadcast camera angles and the benefit of an all-24 angle view that shows every player on the field.
The goal is to have the video referee participate within the flow of the game, leading to fewer incorrect decisions on the field and a reduction of incorrect penalty calls.
The theory here is that this would help get rid of calls that shouldn't have been made, and the article also mentions they found 150 of those last year.