Graham Potter needs eyes in the back of his head to keep track of Chelsea's players. Not only does he have a large squad with several fringe players to look at, he also has a talented academy at his fingertips and a group of loanees to keep tabs on, too.
These players range from youngsters embarking on their first senior placements to Serie A winners that have been exiled to former clubs. It's a strange mix, but important to remain on top of nonetheless. Add in the intensity of his first five weeks at Stamford Bridge and it's almost an impossible task.
The evidence of why this is so important is right in front of him though. In the current squad, Mason Mount, Reece James, Ruben Loftus-Cheek, Conor Gallagher, Trevoh Chalobah and Armando Broja have all spent time on loan.