With Ainsley Maitland-Niles seemingly close to a permanent move away from the club, it looks like the Arsenal transfer carousel is in full swing.The much-spoke of move for Brazilian Gabriel Magalhaes is inching closer – and now we hear of another potential transfer.This one is another outgoing, but not a permanent one, as Rob Holding is linked with a loan deal to Newcastle United,This move is on the back of the club having too many central defenders and a need to shrink the squad somewhat before strengthening.Holding has impressed Mikel Arteta. The defender was far down the pecking order but injury saw the Englishman start plenty of matches thanks to a string of injuries to his defensive colleagues. He played well and this may be the reason why Holding is not being talked of with a permanent move. Holding could still do a job for us, and a full season at Newcastle United will provide the ultimate litmus test on whether Holding is up to the task of playing at Premier League level on a weekly basis. This is something that he hasn’t quite had the opportunity to do since he joined. If the loan move pays off, then he comes back to us an improved player and with his future looking decidedly brighter at Arsenal.We need to clear the books a little at the back. Sokratis is being linked with a move to Napoli – a move that hinges on the future of Napoli defender Kalidou Koulibaly – and Shkodran Mustafi’s destiny is unclear too. With Pablo Mari, Calum Chambers, David Luiz and probably Magalhaes to call on for Arsenal, it’s clear we need to trim the fat a little.Holding played just eight Premier League games last season and his career is at a crossroads. If he chooses to stay and fight for his place then his prospects could nosedive should he fail to force his way more into Arteta’s plans. However, a loan move means he has better chances of playing and he can return to us a better player.Of course, there is still a significant chance that Holding could leave the club on a permanent deal. With transfer funds needing a shot in the arm, if a bid came in – could Arsenal choose to ignore it?We’ll keep you posted on all things Arsenal.