When we initially adopted Zula in August, we were on a "walk, then food" type of morning schedule. The problem is, Zula isn't a morning dog. Eventually, we realized that it made more sense (especially with the later sunrises in the winter) to swap things around, so now we feed first, and then take her out about half an hour after she's done eating. As others have said, you'll figure out what works best for you and your new hound!
As for poops, sometimes we get two poops per walk, sometimes it's just one. If it's two, they're generally not more than ten minutes apart. I don't think you need to be waiting hours for a second poop!