It used to be the case that when VAR asked the referee to review an incident, everyone expected the referee to change their mind. No longer.
After the Walsh decision against Diomande, this week we have Robertson, in the Aberdeen game, called to review his decision and deciding not to change his decision.
I'm wondering if this is the Collum effect. Willie was known to be a tad techy when anyone questioned his decision and was one of the very few who, when called by VAR to review, stood by his original decision. Now that Willie is the main man, are Refs thinking that this is the way to impress or is it simply a coincidence?
Watch this space.