Even if not straight reds, start tossing the yellows out like Skittles and allow VAR to make the call and send it down to the field to avoid frequent stoppages. No mercy even for guys sitting on a yellow.
Once that's established I'm all for VAR getting more involved with the extra curriculars. Too many guys are still trying to bait refs into yellows and reds. It would be a disaster with the drama queens in CONCACAF