Saw this quote from Kyle Allen today. Pardon me if it has already been discussed. He's referring to the offensive system.
“There's a lot more to it and there's not a lot of reasoning behind a lot of stuff, so it's a lot of memorization. ... It's been built over so many years and a bunch of different people have had their hands on it, so it's not really a cohesive system, but once you memorize it and get it, it makes a lot of sense.”
That is one of the scariest off-season quotes I've ever seen.