Hen 2-3 steps from the blind facing away. Jake offset a bit from the hen 5-6 steps away facing the blind. The gobbler will face the jake or come in sideways and there is your shot.
They look further in this picture but several gobblers have walked into this obscenely close setup.
I do think one secret to success is to put your setup where they have to be close to see it. Several birds have come thru the fencerow behind this blind and they are right on top of it or they come down the row of pines and don't see the hen good until they are pretty close. You can almost hear them thinking, hey I'm this close might as well walk in. If you set it up where they can see it a long ways off (which is what you might think you want to do) they tend to hang up and strut, waiting for the hen to come to them
Use a hidden corner of a field, a rise in terrain or whatever works. They are looking, looking and looking for that hen that is calling. They can't see her and then bam, they are right on top of the decoys and coming running in puffed up to kick some butt.
Hopefully a happy result