Defensive Corners - specific situation

[andershs]

My defensive corner setup is this:

Now, this has worked fine in Chile, but after I got a job in Colombia, the teams have started to use this attacking combination against me at every corner:

(Opponent is grey, I am yellow)

Number 8 is lurking quite far from the penalty area near the corner taker. He receives the ball and has free space to sprint into the penalty area, creating a dangerous situation every time.

My number 11 cannot intervene, and my three players on the front post (27, 14 and 24) are not quick enough to intercept him.

Now, I can put a player in the red circle, but other than that, I have no option to set up such that I can counter the number 8.

Is this really correct? Can anything be done?

Thanks.