Truth be told, I'm hoping it's more QB making the line and Baker improves as I see 2-3 weak links on the O-line this year.
That said, I recall seasons where Rodgers and Big Ben (among others) were said to have poor lines and they still had very good seasons.
That's where experience and scheme come in. Ben is a master at moving around in the pocket (has to be, because he couldn't outrun me lol).
If the Browns o-line can be at least solid, they have a chance for the team to be really good. You can scheme around a bad o-line, but you can't really use the whole playbook because you can't run plays that take longer to develop.