It’s the 2018 NFL football season, and the Pittsburgh Steelers (of all teams) have perfected a secret device to tap into the on-field communications systems of the other teams.
As they go through their season playing against the San Francisco 49ers, the Seattle Seahawks, the Washington Redskins and others, the men from Pittsburgh are able to block the messages from the sky box to the coaches and quarterback on the field, and instead have their crack team of voice actors issue their own commands. And they manage to do it in a subtle enough way that the other team doesn’t know it.
At the key moment, a wrong play is called and the other team makes a game-losing mistake.
In that fashion, the Steelers cruise to a Super Bowl victory with an undefeated record.
Word of the secret device leaks out, but the society has become so devoid of integrity that nobody cares enough to do anything about it (fearing violent reprisal from the thugs who own the Steelers).
That, the plot of my as-yet unnamed upcoming techno-thriller…
‘Nough said (for now).
Musings of a Disciple 
It took a couple of years, but it finally happened in real life: https://www.youtube.com/watch?v=7WKZNGisSqM