Consistent team selection can bring results - and it is statistically proven.
Antonio Conte's side lead the way in the Premier League this season and look set to regain the crown having made the fewest changes to their side.
The Blues have been fortunate with injuries and Conte's first XI has settled to a point where their strongest XI is clear for all to see.
On the other hand, Pep Guardiola is yet to name an unchanged team with fourth-placed Manchester City, while a number of other sides seem to make alterations to their starting XI week after week.