Son Heung-min, Kim Min-jae, Lee Kang-in, etc... It seems the national team factionalism is at an all-time low

The conflict that surfaced starting from the Son Heung-min and Lee Kang-in finger incident
is now spreading like a massive tumor.
The KFA, which is just as much of a mess, is obviously failing to resolve this situation,
and after being hit repeatedly by the "disaster" coach Klinsmann, it seems they have become completely incapable of recovery.
It is actually quite ridiculous to expect a young, unknown coach with an interim title to mend the internal strife within the national team.
Looking at the interviews with Kim Min-jae and Hwang In-beom yesterday, the internal situation looks much worse than we can imagine.
I don't think it's just a matter of them not getting along; I believe it is reaching a point where it is affecting their play.
I don't see a solution. This is not something that can be fixed by Moreno.
Do we seriously need to "Bring Back Wenger" or something?