Rassie, is that you? Innovative Spain coach's Erasmus-esque FIFA World Cup tech tools

During Spain's 7-0 demolition of Costa Rica in their World Cup opener it was explicitly clear Luis Enrique's players know where on the pitch they should be and what they need to do, at all times.

The coach is set on positional play and retaining possession, and has been innovative in his use of technology and outside-the-box thinking to get his players to operate within his set structure.

When Spain train, both at home in Las Rozas on the outskirts of Madrid and at the University of Qatar in Doha, Luis Enrique sometimes stands on a scaffold tower, which he asked to be constructed.

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It's a tactic he has been using since coaching Celta Vigo in 2013. It's also a tactic akin to SA Rugby director of rugby Rassie Erasmus' innovative coaching methods he deployed when he coached the Free State Cheetahs soon after retiring from rugby.

Erasmus would use traffic lights to indicate what moves or plays his team should initiate while he perched like an owl atop the stadium on game day.

It led to the Cheetahs winning two Currie Cup titles under the Rugby World Cup-winning former Springbok head coach in 2005 and 2006.

From above, Enrique has a better view of the players' positions and, using microphones on the back of their training vests, he can instruct them via walkie-talkie.

"Today, for example, I decided that the strikers will wear them and we have had much calmer communication," Luis Enrique explained on his Twitch channel last week - with live-streaming another example of his technology use at the tournament.

"I don't talk to them when the play is in motion, because they don't need to think that I'm running after them, but when the move is over, if there's