There can be no doubt in anyone's mind that Januzaj is one amazing player.
It's exceedingly rare that somebody so young has the poise, class and technique that he does.
That said, he is still only 18-years-old, and while many Manchester United fans already view him as the messiah, Moyes may be throwing him in to the fray a bit too soon.
If United's win against Fulham exposed any weakness in Januzaj's game, it was his lack of upper body strength.
Januzaj had the pace to skin defenders alive, to blast past them with his sheer pace, and to repeatedly bamboozle them into submission.
That said Moyes still needs to handle his transition from squad player into starter well, lest he risks ruining one of the brightest talents to ever come from United's esteemed youth academy.
If there was one policy that Sir Alex Ferguson held that very few people understood, it was his treatment of his younger players.
Despite whether they were better than current members of the first team or not, the young players were always treated with an incredible amount of caution, as if they were porcelain figurines that could be broken if overused.
While this policy has produced a good number of stunning failures and forced a couple of incredible players out, who could easily have stayed at United if they were given game time (think Paul Pogba), it worked reasonably well over Fergie's spell in charge.
Don't forget where Cristiano Ronaldo came from. At United, for the first three years he was by no means a guaranteed starter whether or not he deserved to be in the first team.
Ferguson always played the caution game and give the youth players some experience, without absolutely throwing them right into the fray.
While, Manchester United's current crop of first team wingers leave a lot to be desired, one must ask whether it is worth risking such a prodigious talent for a couple of goals and assists.
Despite his troubles upon starting the season, Moyes needs to be thinking about the long run.
He needs to be looking to the future - and that may entail sacrificing a crucial piece of the present.
I am in no way suggesting that Januzaj shouldn't be an integral first team member - just that he should instead be a periodic starter who makes most of his appearances in the second half of games.
Until he has built up a bit, he's going to be an injury risk against the more rough teams. That said, either way he will still be a world class player.
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