The first player to possibly become aware of Erik ten Hag's authority at Manchester United is someone who might never play for the club.
Pau Torres, tracked by United for at least two years, was recommended by the scouting department as the prime left-footed centre-back to sign. Erik ten Hag demurred and made the case for Lisandro Martinez.
United's power brokers sided with the manager over the overruled recruitment staff. Martinez has proven to be one of the signings of the season and the best of Ten Hag's five permanent additions.