#2 Pablo Fornals (Villareal to West Ham for £24m)
Pablo Fornals moving to West Ham raised a lot of eyebrows in the summer. The young Spanish playmaker was among Villarreal's brightest prospects, and many fans expected him to move to a much bigger club.
The Hammers were delighted with such a high profile signing, but Fornals has struggled to cope with the Premier League's demands. The likes of Felipe Anderson, Robert Snodgrass and Manuel Lanzini are all above him in the pecking order.
In 14 Premier League appearances, he has just 1 assist to his name and is yet to score. West Ham have been struggling to score and create goals going forward, which is surprising considering the quality of midfielders they have.
Fornals will turn 24 next February, and it doesn't look good for him. He's not getting as many chances as he would have liked, and he's failed to make an impression when he is on the pitch.
Perhaps a change of pace is what he needs. Manager Manuel Pellegrini has come under pressure for a very poor run of results, and maybe a change of manager could spur both club and player forward.