You've got to play Santon, man. Raylor has been servicable in the first few games and he's done well on set pieces, but we've got to drop him immediately now we have a proper left back. Santon has the ability on the ball to link up well with Jonas and play into midfield, while he should have enough physically to cope with SWP.
If we want to start playing this 'new system' it's crucial we get him in the team as quickly as possible. Sorry Raylor.