Grading Prem's 10 biggest transfers

Did Chelsea make the right move by acquiring winger Juan Cuadrado for 23.3 million pounds? Marco Luzzani/Getty Images

The 2015 January transfer window is in the books, and while many fans and pundits will note the lack of activity that took place across the Premier League -- and elsewhere, for that matter -- there were a number of signings, both good and bad, that will have a significant impact on the title, top-four and relegation races this season and beyond.