Interesting, I didn't think that WB would be waiting for WCB to overlap, always though it would be the CM waiting the the run of the WB.
Part of the plan was to fill the midfield physical player + a trigger press & tight marking on MC, so that if the opposition dared to progress centrally we could win the ball back. Also, I don't have play for set pieces on in the screenshot but I intend to fully utilise set piece recruit tall and ariel dominate CB. This way crosses coming from wide areas, via trap outside, could easily be dealt with.
I'll also give this a try. I imagine the CAR won't try to become a 10 like a BBM or MEZ will.