So pre patch I downloaded one of the Scotland teams from the fanhub and linked it to the in game Scotland team. Decided to delete that team and just replace the players in the in game team, so I unlinked the team, deleted the downloaded Scotland team, and then tried to delete the individual players who were in the team, only to get a message that I couldn't delete the players because they are in Argentina. I checked and they definitely are not in Argentina, so looks like I'm stuck with those players.
This is the kind of database issue that has carried over from the last game!