I watched one show. I thought he made two mistakes, but then one could have been an added scene. Walking to a calling stand on the top of the local ridge, instead of a lower position. But, then I guess we couldn't see what the surrounding scene was either, to see if it was ok to walk that far up.
Another is you shouldn't call if they are within 400yds, and can see your position, that coyote bolted, as soon as he did that.