Another transfer window passes by, which begs the question – did Arsenal get any business done on deadline day? Mikel Arteta and his Gunners squad have every chance of lifting the Premier League title at the end of the season, so Arsenal will have needed all the firepower they can get heading into the second half of the season. Even without the prospect of the title, Arsenal will still be desperate to get the job done in the Champions League, as they face a tough encounter with FC Porto followed by whatever European giant may face them in the next round. Because of this, it was interesting to …