Southampton are working hard behind the scenes to get their business done early this summer to give themselves the best chance of Premier League survival. Russell Martin has already welcomed six signings ahead of the club’s first pre-season friendly of the summer against National League side Eastleigh on Friday 19th July. Taylor Harwood-Bellis’ permanent arrival was merely a formality once promotion was confirmed given Southampton and Manchester City had agreed a £20 million fee to make the loan permanent if the Saints came up. That £20 million aside, Southampton have spent just under £12 mill…