Cathro, 28-years-old, has been drafted in as part of the backroom team by Steve McClaren and will be tasked with working alongside players who are older and have been involved in the game for longer periods of time.
However, he doesn’t see his age as a problem and will work hard to ensure that he can have the best possible impact at the club.
“Everyone's keen to make some progress. My view is to give everything that I possibly can, spend every hour of the day that I can apply to trying to support Steve and the rest of the staff,” he told nufc.co.uk.
“I know I'm still probably quite young, and that's written in the first line of most things, but I don't feel it. I'm just a hard worker.”
Where might an issue develop?
There is always a risk with a younger person being brought into a position of authority, that older individuals may create a sense of friction.
Cathro has a responsibility to step in and make decisions based on what he sees, to try and take some of the pressure away from McClaren and all of Newcastle’s players need to be open to that possibility.
However, it’s a balanced decision by Steve McClaren and hopefully one where the benefits that Cathro represents make more headlines than the possibility of any friction in the dressing room.
Theory behind the decision
For anyone to become an assistant coach at a Premier League club at just 28-years-old requires a great deal of talent.
Cathro clearly has something about him in terms of the way he thinks about the game and the way he coaches players and he deserves a fair chance to make a telling difference for the club.