McCoy leaves Eagles game with groin injury

This question is for those who were paying close attention to our o-line blocking and understand the dynamics of zone blocking o-lines. Does the center call the zone blocking assignments? If so, did the Saints have to simplify their blocking schemes with McCoy out? It seemed to me that our o-line blocking went to a man assignment blocking scheme after he left the field.
I don't think it was that complex.

JALEN CARTER is a MONSTER. Jalen Carter is a mountain of a man. McCoy is a MONSTER himself, and handled him until exactly the 2nd play, when he went out with the groin injury.

Putting in a scrub against Carter had no chance. Even with help. Even with scheme.