The main personnel manager who initially contacts people does a great job. It would be the failure of the upper echelons of management that seem to drop the ball. They have a "Tier" based hiring system that excludes people who do not test very well for Walmart as a whole, not just the job that they're applying for. The pay compensation is NOT even remotely competitive whatsoever.
It took a few days to actually get the ball rolling after the initial interview with the main personnel manager, but again, not his fault. Upper management were too busy dragging their feet to get anyone into a position that's been vacant for almost a year!