I know it's not easy, but it's been 9 years of the same ****. And in terms of stats. Brady was near to most pressured of all QBs last year with pressure on over 32% of his snaps and about 21% of those end up in a sack (not good). Considering how elusive he is in the pocket, that just points to how awful the O-line is.
It has to be a priority because of how vital it is. Brady is now 39. He can't keep running for his life and getting hit 25 times a game. Without an O-line, the offense can't do anything. An O-line can make average receiver look like All-Pros when they give Brady time to find them. They can open huge holes for JAG backs. But behind a crappy O-line, even NFL legend backs aren't going to be able to do anything and your mid-to-deep plays can't develop, even when you have Randy Freaking Moss.