Jim Spencer once wrote "sit down wrong, and you're beat." He was 100% correct.
I've often thought to myself that if one doesn't know the ground at that set up location, without luck that turkey will beat you every time. Guys like me who hunt large tracts of public rarely get to know the ground intimately, as in blow downs, root ball depressions, benches, rocks, water, beech or multi rose flora scrub brush, etc.
It all plays into his decision to come in straight to your set up, or peel off left or right along the way.
Too many times I've struck a bird mid morning, and without thinking it through, sit right down right there or get a little closer and sit, with my left shoulder facing the direction he might come if walking an imaginary chalk line between him and the tree at my back.
Its the stuff in between that more often determines the outcome of that interaction if the gobbler is committed to walking in.
"Sit down wrong, and you're beat." Sometimes you can influence that set up, other times you are at the mercy of the conditions on the ground. The more you know the ground, the better your odds are.