They have all sold players recently who could now be having a big impact on their teams.
The benefit of reflection is a wonderful thing and something which will always exist in football.
Liverpool allowed Dirk Kuyt to go and play in Turkey, not knowing that Fabio Borini would break his foot just after the start of the season.
Kuyt would have provided valuable assistance in that period where Luis Suarez was the only striker at the club and when Jonjo Shelvey was used as a centre forward against West Ham United.
Kuyt was replaced effectively with the eventual arrival of Daniel Sturridge but Liverpool could well have been in the top four at the moment had they hung onto the Dutchman.
Chelsea were the side that sold Daniel Sturridge to Liverpool, an experienced Premier League striker who could have effectively taken the pressure off of Fernando Torres and Demba Ba right now.
Victor Moses is back from Africa Cup of Nations success with Nigeria but Sturridge is showing at Liverpool, just how good he can be starting in a side with a regular run of games.
Some Manchester City fans will also still be a little confused as to why the club sold Mario Balotelli to AC Milan.
Granted, the Italian caused a few problems and headaches during his time at the club but City are chasing a 12 point gap from Manchester United and they’ve responded to falling behind this season by selling one of their most explosive strikers.
Balotelli was very inconsistent during his time at the club with some brilliant performances mixed in with the sort of displays that make you scratch your head in amazement.
However, the point is that City need to retain players like him to maintain their success and the consistency of their squads. Who’s to say he couldn’t have come off the bench and banged in a brace against Southampton to salvage a point.
All three sides could easily have been in better current positions at the moment if they’d retained their original players and used them effectively.
What do you think?