Southampton may have to be ruthless in order to assemble a side capable of staying in the Premier League next season. The current crop of players managed a fourth place finish in the Championship before beating Leeds United 1-0 in the play-off final. Five of the players who finished the season at the club were on loan, with Taylor Harwood-Bellis the only one so far to make his Southampton move permanent. Stuart Armstrong is already confirmed to be leaving upon the expiry of his contract this summer, whilst Che Adams and Alex McCarthy are both expected to leave for the same reason despite nothi…