I have baited coyotes a few times in different situations, it can be a very effective tactic. The first time that I baited coyotes was on a dairy farm near where I lived. Every once and a while a cow you get sick, injured, or whatever that needed to be put down but couldn't be eaten, then we would drag the cow out to a corner of thier farm where all the abandoned broken down farm equipment was. There were a few rusted out pickups, tractors and an old combine out there. We would drag the cow to the far edge about 150 yards from the old combine. On full moon nights I would sit in the combine and wait for coyotes or fox, Once I had one eating on the cow I would open the side window and take the shot. If you stayed in the combine until ready to leave you could sometimes shoot several off the carcass in one night.
The second time situation I baited coyotes in was when going to college in northern michigan. With the miles and miles of unbroken swamp and heavy brush calling could be fairly difficult. The animals where very spread out and it was hard to cover a lot of ground for scouting. We found a fairly open large swampy area and once frozen over dragged all sorts of stuff from roadkill deer to trapping scraps, mainly skinned beaver and muskrat. At night we would sneak out to where we could see a couple hundred yards to the bait pile from a snowmachine trail. Also during the day we would stop 300-400 yards downwind and predator call. A lot of times a coyote pack may have layed claim to the bait pile but bobcats, lone coyotes, and fox would wait downwind for the coyotes to leave so they could sneak in for a bite, they would often come to the call and sometimes you would call the coyotes off the bait too.
Its also nice to set traps and snares on the trails that develope to your bait site.