The summer transfer window provides clubs all over the world an avenue to bolster their squads in a bid to address weaknesses and improve team functionality.
Even in the most powerful of squads, there is always room to accommodate new players that can make the team marginally better than they previously were.
This article looks at some of the players who will make the most difference at their new clubs.
2Henrikh Mkhitaryan (Manchester United)
The imbalance of the Manchester United squad was apparent, as they played almost the entire season without a proper right winger, having failed properly to replace Angel Di Maria and Adnan Janujaz.
Juan Mata did a job there for a while but lacks the speed and dribbling ability to succeed properly in that role. Jese Lingard also did well as a stopgap solution but was wildly inconsistent.
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The purchase of Mkhitaryan gives Mourinho a right wing player who is capable of going past players, shooting with both feet, and tracking back, the last of which is imperative to Jose Mourinho. Should Memphis Depay find his pre-Manchester United form, the trio of Depay-Rooney-Mkhitaryan could be right up there with the most functional in the league.