Arsenal are content with their transfer business from January with the window now shut, according to BBC Sport journalist David Ornstein.
"What may have seemed from the outside to be a lack of a coherent plan, actually came together satisfactorily," Ornstein told BBC Sport.
"Arsenal were in a difficult situation because Sanchez wanted to leave and suddenly it came about that they could get Mkhitaryan as a replacement, which was not something they anticipated.
“So they came out of that quite well, despite not getting any money for one of the best forwards in Europe.
"And then of course they secured Aubameyang, who was their preferred target to replace Sanchez, for a fee of around £56m when he was valued at around £100m recently and supposedly considered by Real Madrid.
“Right now I think they will be fairly happy about it."
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Pierre-Emerick Aubameyang was a big contributing factor as to why Mesut Ozil extended his contract at Arsenal.
The playmaker has officially penned fresh terms at the Emirates on a deal worth £350,000 a week for the next three-and-a-half years.
According to The Telegraph, Arsenal’s offer was unmatched by any other club, despite interest from Manchester United and China.
Additionally, the arrival of club-record signing Aubameyang on deadline day played a crucial part.
The fact Arsenal successfully replaced Alexis Sanchez put Ozil’s mind at ease over the club’s direction, with the Gunners avoiding losing him for free in the summer.
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“Seriously I would have tried to get rid of Lacazette and kept Giroud”
Paul Merson
Arsenal should have sold summer signing Alexandre Lacazette rather than letting Olivier Giroud join Chelsea, according to club legend Paul Merson.
“Seriously I would have tried to get rid of Lacazette and kept Giroud, in my opinion,” Merson said.
“Arsenal have no plan B now, their plan B has completely and utterly gone.
“If they’re losing a football match, Giroud would come on and he would do something.
“You could get a cross in and he would score goals. I find it shocking.”