Of course it affected his accuracy, but I don't think designed roll outs were in the playbook even before the injury, which is curious to me.
In regards to the line coach and a new system/OC, I don't think it's usual for that to happen. Line coaches usually only coach one way, they believe in one scheme and they try to perfect it. I'm sure their are some that can coach both main schemes. I thought it was unusual for Loney to remain the OL coach when McD took over. I expected a change. That said, many of the line failures were not missed assignment, but players losing one on one battles.
Now, you can make an argument that hesitation, or poor angles, or bad match ups played a part, but when Bajema tried to block ANYONE, he got burned. Goldberg killed us, except in a couple halves that he played RT. Smith killed us at RT all year when he played there. Saffold could not block the wide 9, or anchor during a bull rush. The center of our line struggled all year, and it appeared as if our center was the problem on many occasions. None of our backups came in a performed well. Only Mattison, among the backups played decent minutes, not a surprise to see him back, but he struggled to block in space. Bell and Dahl graded out the best in games that I broke down, but even they were just average at best. Dahl played exceptionally well at RT. I'm not living in or from Missouri, but they are going to have to "Show me".
Bradford has all the tools to succeed, mentally and physically, but I'm still worried about the line.