Pretty sure that is Selles role, Was shared a while a YouTube video that his main strengths were defensive phases of play, with and without the ball.
There’s this from the horses mouth too: https://www.canofootball.com/articles/academy-corner/a-look-inside-the-spanish-coaching-school/ He went to Spain to do his badges because he was a Bielsa and Pep fanboy who couldn’t get on an FA course here. He’s certainly an interesting chap. He’s written pretty extensively about coaching and football too.
I've let Gareth know I'm available for selection this winter. Mentioned I'm a Right-Back so think I've got a decent chance of going