The biggest change may be the simplest.
That matters because it changes the risk-reward calculation. Players and benches may think twice before slowing the game for minor treatment if it leaves their side temporarily short-handed. In a league decided by fine margins, even a brief spell with 10 men can shape a transition, a set-piece or a pressing sequence.
A separate anti-time-wasting push targets restarts.
Substitutions also look tighter.
That is a direct hit on one of the oldest late-game habits in football: the slow walk to the touchline. Coaches protecting a lead may now need cleaner substitution plans, because a delay could leave the team exposed for longer than intended.
The VAR tweak is notable because it is narrow, not sweeping.
That keeps a line between fixing obvious errors and re-refereeing every disputed challenge. The league seems to want fewer stoppages, not more.
The next storyline is obvious: how strictly referees enforce these changes in the opening rounds. If the thresholds are firm from matchday one, managers and players will have to adapt quickly.