Some of the larger dogs will kill the yote. As for speed, I think most people around here rely more on stamina. I've known several people that let out packs of dogs in the evening so they can go out and kill yotes. Airdales, Belgian Malnois, etc. IMHO, it's irresponsible not to accompany the dogs. Besides, the fun is in working with them as a team!
WTG Aaron, you nailed all the relevant points perfectly!