I can't believe we are this close to the start of the season and we still have so many spots to fill.
I can only assume, despite some rumours, that Tratt and the Spanish trialist are going to be signed along with the young kiwi lad (u20 player), because the reality is, anyone else would have to come in from outside the group and would have no time to learn the systems. So unless the are "Marquee" status, any inclusions have the potential to be more disruptive than anything.
Guest players have to satisfy 'marketability' criteria, so we wouldn't be able to get Yoo on one of those.
I'm guessing that Rudan has figured out that getting a good foreign forward is going to be difficult at this stage, so by going for a foreign DM means, in theory, we tighten things at the back and aim not to give away too many, and hope that the combination of Krishna/Burns/Singh/Williams/Nichols can score enough to keep us in the hunt. And then, if Krishna gets the citizenship before Christmas, re-evaluate and see if you can get another good import player in the January window.