How would you handle the consequences of the following situation…

How would you handle the consequences of the following situation…

How would you handle the consequences of the following situation…

There are four zombies attacking my group’s fighter. Three of the zombies are attempting to push him backward into a pit. I’m using a tug-of-war progress clock for that one. The remaining zombie is just trying to deal its damage and eat his brains.

Should I deal with the zombies as if they are two separate groups attacking the fighter? Or, one group and choose which to use for consequences on anything other than a 10+? If the advice is to treat them as two groups, is it as if I keep the spotlight on him for twice as long when it gets around to him? First make a move to avoid the pushers, and then if the fictional positioning still calls for it, separately ask him to do something to avoid the lone attacking zombie?

Thanks in advance for your wisdom.