Cost us the bowl game last year too.
Fire Poppinga.
Seriously I have a theory, at least on the coverage problem. When we have a good defense we usually have good special teams. When we don't it is because our lbs and defense players aren't as good or don't have as many reps, specifically tackling and speed wise. Take a guy like Langi. Potential upside, but right now he is a step slow and missing tackles and lacks experience. Same story with a lot of our lbs.
conversely, guys like Sorensen, Hadley, KVN, Unga etc were a boon to the coverage the past few years.