Andre Schurrle's fall from grace in recent times has been rather unexpected. In the Premier League he is often overlooked for Willian; despite showing his finishing qualities. He's netted more goals than Willian in far fewer minutes but, despite, this Jose Mourinho continues to bench him.
During the period of time that Schurrle had been overwhelmed with sickness, and Willian proceeded to take the chance to prove to the Blues boss that he should be the number one man on the right wing.
Willian's statistics aren't exactly flattering for a winger, (only one goal in the Premier League this season), but he's managed to prove to establish himself in the starting XI due to his energetic style of play along with his exemplary work-rate.
Mourinho loves a hard worker and Willian has shown that he is capable of that, despite his poor games-to-goals ratio. His output is unimpressive but his performances better explain why he fits the right wing role better than Schurrle, at least at this point in time.
He creates space for his teammates and delivers sharp, incisive passes, and has good chemistry with the rest of the regular starting XI. Indeed, Willian has shown his proficiency at tracking back as well. His overall contribution to the team on the field ranks him higher than Schurrle.
In contrast, Schurrle hasn't impressed in recent games for the Blues. He's been hauled off at half-time against Southampton and Watford, and his decision making has been poor. Careless in possession and on a different wavelength than the rest of his teammates, Schurrle has let his team down.
Despite this, Chelsea should know what he's capable of. He can play almost as a second striker and his movement is key to his goal output. Capable of breaking past defenders with pace, Schurrle has shown the proficiency to read between the lines and offer Chelsea something the likes of Hazard, Oscar, Fabregas, and Willian can't.
Whereas this esteemed quartet operate better on the ball, Schurrle has shown his adept ability to make space by running into channels and giving the striker more space to operate.
Schurrle will no doubt need time to break back into the starting XI, but if he is capable of rediscovering his form, there's no reason why he shouldn't be a starter, and key asset, to Chelsea. By keeping hold of the German, Chelsea could well benefit from his unique and valuable ability come May.