I realize nobody is going to agree with this, but.... I say keep Burton.
1) My negative take on things: This year does feel like a train wreck right now, but if they get a new coaching staff, we'll have 2 or 3 more years of a new coach and everyone saying "These are not his recruits. Wait a couple of years." and "Be patient. We're such a young team." We heard it when Glanville and Burton came in. Like it or not, they can't financially afford a new coach. I think they live or die with Burton. PSU also can't afford to wait any more years. Realistically, there may not be 3 more years of football.
2) My slightly more positive take on things: If Justin Gonzales was a Viking last season, they are most likely a playoff team. Would this conversation be different if that had happened...