There have been plenty of questions sent Mikel Arteta's way over his dealing of William Saliba.
The young French defender arrived in north London to much fanfare, with the Gunners fanbase hailing the £27million signing and putting a huge weight of expectation on the teenager's shoulders before he had even kicked a ball.
Saliba was seen as just the defender Arsenal needed to solidify their backline and help them to get them back to their title-winning days when their team was built on solid defensive ground.
It has, however, not quite turned out that way.
Saliba has not been given his chance by Arteta, playing U23 games for the Gunners, not trusted to slot into the first team just yet.
And, not part of Arteta's plans, Saliba was farmed back out to France this month, signing a loan deal with Nice to get some much-needed first team minutes.
There was a suggestion that Saliba would return to Saint Etienne, the club from which Arsenal signed him, but he made the move to Nice instead, and was thrown straight into action, handed his debut against Brest on Wednesday night.
He may have wished he stayed at home, however, with Saliba enduring a debut to forget.
In the early stages of the match, Saliba looked comfortable and was even seen in the first five minutes pointing out potential dangers to his defensive team-mates, talking them through as Brest attacked.
However, 11 minutes in things took a turn and gave a glimpse as to why Arteta has not trusted him in his Arsenal team yet.
The Gunners boss entrusts his defenders to bring the ball out of the backline and get attacks moving. When Saliba attempted to do this, he overran the ball and in trying to keep control of it, he ran his studs down the ankle of Paul Lasne and was immediately booked.
He showed assuredness when dealing with low crosses, twice clearing away the danger with ease, with one setting up a Nice attack.
But if the yellow card was a bad start, things got worse when he was arguably at fault when Brest took the lead.
Saliba was drawn to the ball when Romain Faivre went to shoot on the the of the box, when Stanley Nsoki had the shot covered.
Saliba's move towards the ball, left Steve Mounie free in the box and he snaffled the rebound after Walter Benitez made a save.
There is no telling whether he would have been able to stop Mounie from scoring, but moving out of the centre cost him any chance of doing so.
Saliba could do nothing as Brest made it 2-0 soon after thanks to an awful backpass from Jordan Lotomba that allowed Franck Honorat to round Benitez and pass into an empty net.
There was one moment of real quality, perhaps not in the area Arteta will be pleased to see him do it, though, when Saliba produced a Cruyff turn on the edge of his own box to get away from a Brest attacker and get Nice on the front foot once more.
Whether Arteta was impressed will be up for debate, but it will certainly have made the Arsenal fans watching on smile.
Saliba was an assured presence on the ball and was often the deepest of the three that Nice deployed at the back. But it's clear he still has much to learn, which is why Arteta has sent him back to France before trusting him in the Gunners starting XI.
