Every club makes a mistake during the course of the season, some worse than others, but it's inevitable that one or two players seem to slip through the fingers every now and then and that certainly applies to Fulham.
The Cottagers are flying this campaign.
It is certainly proving to be their best since they made the Europa League final, and definitely more memorable than the year the West London outfit suffered relegation to the Championship.
Slaviša Jokanović has the right mould in his squad and won't be wanting to change it too much in the fast-approaching summer transfer window just round the corner, no matter what division they'll be playing their football in.
Not just the current boss, but previous managers as well would have agreed to sell players although it must be the chairman who makes the final decision, and both may have let some depart too soon.
Here are two who Fulham were too quick to sell...
David Stockdale
The current Brighton & Hove Albion first-choice goalkeeper is obviously enjoying life on the south coast, but he began his career at York City before moving up the ranks to sign for Fulham in 2007 from Darlington.
David Stockdale always had played second or third fiddle, though, during his time at Craven Cottage with Mark Schwarzer retaining his place.
The Leeds-born man also spent time on loan at Hull, Leicester City, Rotherham United, Plymouth Argyle and Ipswich during his stay in London.
The Cottagers agreed to sell their 'keeper to Brighton in the summer of 2014 and never really gave him the opportunity he deserved, they should have at least given him a pre-season to prove his importance.
Stefen Payne
Stefen Payne has had to earn his right to feature in professional football having started his career in non-league with Sutton United but impressed so much for the club that Fulham decided to take a chance on him whilst in the Premier League.
The Cottagers never gave the attacker an opportunity to shine as he heavily featured for the reserve side during the 2009-10 campaign before being sold off to Gillingham the following summer.
Payne hasn't made it to the top, admittedly, but he has quality and is currently attached to Barnsley, albeit on loan at League One strugglers Shrewsbury Town.
Fulham should have gambled with him but instead of taking the risk they decided to let him depart Craven Cottage.
Fulham fans, do you agree? Did the club sell these two too quick? Who else springs to mind? Tell us your thoughts in the comments below!