"Only 8 in the picture, iirc he set 12 traps and caught 11 was the story, but that might be wrong. I hope I never have a day like that, too much skinin there."

My bud Mark Zagger of Coyote U has several pictures like that from out West.
B.B.W. is not the only guy that can do that.
Mac

There have been times when I will make 4 or 5 sets at a location. 2 will be lured In some way or another. 3 will be dummied up no lure no hole no nothing but a blended In trap.
I would Never make a set with out a trap placed and bedded.

Make a catch In 1 or 2 of the first sets. Then lure and bait or what ever the next 3 or maybe just one of Them. With a drift pin you can create scent holes at those dummied sets and be on your way In seconds. The less disturbance the better. The catch circles are your main attraction.

Lots of times you will find that some coyotes even fox and cats won't enter a catch circle. But they will investigate a catch circle. So now you are ready to go for those shy ones. Or there will be times that you won't be able to reset a set that has taken an animal.
Of coarse you can also re do the sets that have taken a critter. Or pick up those traps and move them to new locations or clean them.
If you decide to re use a dirty trap at a NEW set. Just haul a small amount of that catch circle dirt along with you. Now when you make that NEW set with a dirty trap the whole set will smell like the trap And you won't be creating a HOT spot with a dirty trap at a NEW set. Trust me It works.

Setting like this will save you time In the long run and catch you more critters. That Is If you have a good population of that target animal. And If your on location.