If there are doubts in the Manchester United dressing room around the appointment of Erik ten Hag as the club's next manager then they centre on his strength of personality, rather than his skills as a coach and a tactician.
Ten Hag has proven himself to be an outstanding training ground manager, not just at Ajax but also in achieving relative success with two of Holland's less glamorous clubs in Go Ahead Eagles and Utrecht.
What he hasn't done yet is show the character required to manage players of the standing he is about to encounter at Old Trafford. In a dressing room that has been pulling in different directions this season that is the only concern around his suitability for the job.