Do you ever create ‘friction’ to get a reaction from your participants? | Welcome and General

I was reading this interesting interview with Arsenal’s Head Coach Unai Emery on skysports.com. In the interview where he gives an insight into his managerial methods he revealed that he sometimes creates ‘friction’ to get reactions out of his players

"At certain times, you have to provoke friction with footballers

From that friction, you can get something more out of them, something from inside, a greater sense of ambition or maybe even a complaint – a complaint regarding the team can be positive.

As a manager, you have to be careful because that friction can break a relationship. But I believe in always looking for more, both individually and collectively, with conversations which are comfortable but also with conversations which are less comfortable.

In the end, the main thing with any footballer is that their qualities are used to benefit the team. As a manager, you have to get the maximum out of that player and at the same time make sure that he fits with the rest of the team so that everyone is better."

I was interested to know if anyone else does this and is willing to share experiences and reasons for doing it.

What was your approach? Was it effective?

Does anyone disagree with doing this?

As always look forward to reading your views