Thomas Tuchel is aware of the qualities that Billy Gilmour offers to Chelsea, but he needs to be convinced that he has the physicality and ability to meet the demands of his system.
The new boss at Stamford Bridge left the Scot - and Mason Mount - out of his starting XI for a Premier League coaching bow against Wolves.
He insists little should be read into that, with others merely being favoured on the day, but concedes that he is still learning about those that have been inherited from ousted predecessor Frank Lampard.