Wingers:
Gylfi Sigurdsson (Everton)
The moment Everton announced the signing of Gylfi Sigurdsson for a €45 million, a lot of fans were understandably over the moon. If the Icelander can deliver for a mediocre Swansea City, how could he not deliver at a new look Everton side that was going to finish in the Top-4 over their local rivals Liverpool?
Things could not have gone worse for the Merseyside blues, as their star performer failed to deliver.
He bagged a mere 4 goals and 2 assists, as opposed to a spectacular 9 goals and 13 assists last year. The club stumbled on to an eighth-place finish, after tottering dangerously close to the relegation zone for far too long than they would have liked.
It is not entirely Sigurdsson's fault per se, as the club's transfer policy is also largely to be blamed.
Who knew buying too many No.10's without a big striker up front would be catastrophic? But they redeemed themselves by buying Cenk Tosun in the winter, and with enough time to gel together, Sigurdsson might just start delivering the goods again.
Alexis Sanchez (Manchester United)
After a dream move to Manchester City in the summer failed to materialize, Alexis Sanchez was understandably a shell of his former self at Arsenal during the start of the season.
When the winter window arrived, rumors surfaced again of him moving, only this time, to City's noisy neighbors.
The move did materialize in the form of a swap deal - Mkhitaryan for Sanchez - and a lot of people were of the opinion that Arsenal got the worse deal of the two.
While Mkhitaryan has had his share of injuries and not entirely stellar, Sanchez has been far worse from the force he was last season.
In the 2016/17 season, the Chilean had an incredible 24 goals and 10 assists to his name. Compare that to this season, where he has had a mere 8 goals and 6 assists. It gets worse when you split them up - 7 goals and 3 assists for Arsenal (17 starts) as against 2 goals and 3 assists for United (12 starts).
What is worse is that his big move to United has also forced Rashford and Martial out of position, and they have been forced to sit it out on the bench, robbing two youngsters of valuable starting time.
At 29, Sanchez will serve longer in the PL, which means that United have to let go of at least one of their younger members to accommodate him and from the looks of it, it will be Martial. One can only hope that Sanchez delivers next season, if City are to be even mildly threatened.