Jacques Brinon/Associated Press
David Luiz | Chelsea → Paris Saint-Germain: €49.5/£39.2M
An example of what happens when management are influenced by players who want their buddy at the club.
Luiz wasn't signed because he is one of the pre-eminent centre-backs in the world.
He was signed to help bolster PSG's Brazilian clique.
He is better at being a locker room guy than a defender.
Forget about this season, will he ever live up to his transfer fee?
Eliaquim Mangala | Porto → Manchester City: €40.1/£32M
Mangala is great at attacking floated crosses to the extent that he may be more useful in the attacking half than at the back.
He will switch off at the most inopportune times.
Aside from his immense physical attributes, he is not a defender worth £32 million, especially if he is expected to be world-class this season.
Maybe in a few years' time, but he is likely to experience growing pains in the Premier League.
Luke Shaw | Southampton → Manchester United: €37.9/£30M
Have you ever taken a sick day off work even though you were fine?
Have you ever decided to go out instead of studying for an upcoming test?
It is human nature to take short-cuts and in Shaw's case, his fitness levels are below-par, per Sky Sports.
His situation is further aggravated by a hamstring injury, per BBC Sport.
Shaw needs time, so it is unlikely that he will be a star this season.
Adam Lallana | Southampton → Liverpool: €31.6/£25M
Talk about a luxury buy.
Lallana's playing style may be likened to a Spaniard or a German, but his exorbitant transfer fee is emblematic of English players carrying a marquee price for being English.
Lazar Markovic | Benfica → Liverpool: €25.3/£20M
Like Erik Lamela at Tottenham Hotspur last season, Markovic needs to settle.
Don't expect miracles from Markovic this season.
He is a world-class talent and is one for the future.
Calum Chambers | Southampton → Arsenal: €20.2/£16M
Arsenal manager Arsene Wenger hinted at Chambers interchanging positions throughout the season, per ESPN.
The lack of consistency in one position means he could be Arsenal's answer to Phil Jones.
Is a utility player worth £16 million?
In that role, it will take several seasons to figure out if Chambers is value for money.
Jan Oblak | Benfica → Atletico Madrid: €15.9/£12.6M
Is this Josuha Guilavogui all over again?
Oblak is one of the best young goalkeepers in the world, but Atleti offered Oblak back to Benfica, per Marca (h/t Football Espana).
Though, Atleti "have categorically denied the claims," per Luis Aznar at Marca.
Something is not right.