I have this situation almost every year and what I do is call (yelp and cut) load and aggressively and if this doesn't work I move forward 25 or 50 ft. then do the same thing,
one of these works every time for me.

The above is without decoys as I rarely use them but if using decoys as in your scenario I would at the first opportunity sit as close to where you believe the gobbler was when he hungm up, and call him in with your decoys set up 20 ft. behind you. (So he will have to pass you to get to the decoys.)

If poss. you can also stalk the gobbler till you can get a shot, that worked for me this year with a hen-ed up gobbler and a boss hen I could not call in. I followed the flock till I could sneak in, and set up getting my shot at my best gobbler yet.