McClaren was replaced by Rafa Benitez on Friday afternoon.
There had been hope prior to the beginning of the season as they spent big to overhaul the squad and avoid another relegation fight this season.
Instead it have proved to be another season of struggle, with them currently in the bottom three with ten games remaining of this season.
And a look at the stats compared to last season show just how much McClaren failed to have an impact in his 28 Premier League games in charge.
|Before & After McClaren||Goals per Game||Ontarget Scoring Attempts per Game||Big Chance Created per Game||Accurate Pass per Game||Passing Accuracy||Total Tackle per Game||Won Tackle per Game||Goals Conceded per Game||Appearances|
In attack, his side managed to score fewer goals per game this season, as well as registering fewer shots on target per game despite spending big on their front line in the summer.
They did manage to create slightly more big chances per game, and played more accurate passes, but overall had the exact same passing accuracy as last year.
The defence was where they really suffered, posting fewer tackles per game, and winning fewer culminating in them conceding more goals per game during his reign.