The reality is: MOST O Lines in the league are bad. You talk to fans of every team and almost every single one of them will tell you how much their OL sucks. I think the only fan bases happy with their OL are the Lions, Chiefs, and Eagles. Maybe the Ravens and Texans also. OL play around the league sucks.
Our OL is below average but I scheme, playcalling, and an inexperienced QB who had a historically bad sack rate in college made them look worse then they are. There is no chance they look that bad again this year with an upgraded interior, what should be better playcalling(I can't imagine anything worse), and a QB that is much faster at processing and with a quicker release(who is also a legit run threat, which will change the way Ds attack us).