Juan Mata, despite racking up three assists in his first three Manchester United games, has had a fairly slow start to life at Old Trafford.
And that was always going to be the case. Before making his first appearance for the Red Devils against Cardiff City at the end of last month, the Spaniard barely had a kick in the weeks that went before that.
So, as Manchester United go in search of a famous victory at the Emirates tomorrow evening, would it be crazy to suggest that Mata should be left on the bench?
Many Manchester United fans have questioned Moyes' tactics in recent time. His side's clash with Arsenal tomorrow night gives him the perfect platform to prove that he has the tactical nous to outsmart his rival manager.
Mata's time in the big games will come at Manchester United, but tomorrow the champions may be better without him.
Manchester United have enjoyed great success against Arsenal in recent years, and it's on the break where they've really hurt Arsene Wenger's side.
So, tomorrow, an attacking quartet of Wayne Rooney, Adnan Januzaj, Robin van Persie and Antonio Valencia may suit the champions better.
And if Manchester United need quality late on, then a fresh Juan Mata could be the best man to turn to for David Moyes.
Manchester United need to stun Arsenal right from the off - just like Liverpool did - and the pace of Januzaj, Valencia and Co. could harm the Gunners' back-line.
Per Mertesacker and Laurent Koscielny struggled against Liverpool's dynamic trio of Luis Suarez, Raheem Sterling and Daniel Sturridge and Moyes should adapt a similar approach to the one of Brendan Rodgers.
It would be a massive risk for Moyes, but if it was to pay off, then fans may start to believe that, tactically, he can compete with the big-boys.
The Manchester United boss will be aware that the game in north London is a must win football match and he should do whatever it takes to secure the three points - even if he has to leave out his new star signing.