It is however easy to pick ones you think should be kept at the club at all costs – and it may not be the ones who have been the star men all throughout the season.
It could well be the ones linked with a January exit or a player who is being considered for a loan spell – and that we think needs to stay at the club. It may even be one who we think has been disappointing so far this season but who has a whole heap of potential.
With that in mind, we have come up with five players we think Jose Mourinho and his league leaders need to keep come January.
Click on Kurt Zouma to see who we think should be kept by Mourinho this winter.
Chelsea fans. Who would you keep at the club this January? Are any of these players expendable to you? Let us know your thoughts below or tweet us @LaFootyettes.