I don`t watch a lot of Premiership football so am unfamiliar with the extent to which VAR is utilised. But reading some of the comments above, I wonder whether the Premiership has done much in the way of studying how certain other sports make use of similar technology.
In the NHL, (North American ice hockey) for example, video is extensively employed at a kind of "League central operations room" that review all "goals" to ensure that, in respect of a goal scored, that the puck had actually crossed the goal-line. They do it live -time and will call the play back if video shows that, for example, on-ice officials mistakenly ruled out a goal. They`ll only call the play back (ie stop the game ) if an error was made, so the flow of the game is mostly uninterrupted.
However, there are occasions, such as an alleged off-side play directly preceding a goal or a foul on the goalkeeper directly preceding the puck going into the goal, when the prerogative for instigating video review, to challenge an awarded "goal" , is solely at the discretion of the (scored-on) team`s head coach. If the coach gets the call wrong , ie his challenge is over-ruled following examination of the video, (ie adjudged as not off-side, adjudged no goalie interference, so a "good goal") the challenging coach`s team is penalised by having one of their players removed from the ice on a time penalty. This ensures that coaches are very careful about making a challenge - a second challenge, if over-ruled results in a double-penalty.
I don`t know, whether in the Premiership, managers are allowed to make a "challenge" directly after a "goal" against them is awarded ? Or, whether any and all VAR is purely a matter for officials unconnected with either club. If it`s the latter then perhaps there is more time taken on VAR review than there needs to be if certain situations, like alleged offside prior to a goal, were at the sole discretion of the managers, on the understanding that if their "challenge" was over-ruled the challenging manager`s team would be penalised - maybe by reducing his number of players on the field to ten for fifteen minutes.
I`m not suggesting that VAR should only be instigated by managers, but perhaps if there were certain situations (as above) where they could, it would help diminish the time wasted by having everything reviewed all the time ?