Mac was also the QB last year. So he wasn't a variable that changed on that offense that was better.
The reality is the biggest differences on this offense from last year are that we lost our best WR, we lost a solid RB, and the line is peforming substantially worse.. Statistically Mac has been about the same. He's on pace for more TD's and INT's together. But he's also passing at a higher rate and has about the same completion percentage. There's only really a marginal difference in passer rating and average right now.
Really Mac is a problem, but he's not the reason the team is worse this year than last year. The talent downgrade is the biggest culprit overall. You pack that in with a worse performing defense and special teams and it's really no surprise a middling team last year is a bottomfeeder this year.
It's more accurate to say that Mac is a mediocre QB that is surrounded by bad talent which somehow got worse and the OC change couldn't compensate for that (BOB is a bit overrated anyways). Switching QB wasn't going to save this season though. Like maybe we go to a 6 win team or something and win some of the closer ones. But this is a bad team any way you slice it and the primary problem right now is the lack of talent and execution in all three phases. Which isn't suprising. Many of us were ringing that bell in the off season. I don't know why anyone expected this team to do much better. People might have been hoping Mac would take a step up, but you almost never see a QB take the next step when they lose talent on the offense. Manning took the next step when they paired Wayne with Harrison, Brady did it with Moss and Welker, Allen did it with Diggs, Rodgers did it when Jordy Nelson finally developed into a premier back, Tua did it with Hill and Waddle getting added. You just almost never see a QB who is developing take a downgrade on offensive talent and then become better. Usually what happens is they get a big upgrade and it gives them a cushion to be more aggressive and it grows their confidence.
But the offense isn't worse this year because of Mac. He's really no different.
Here is the thing, and good post by the way. I disagree with some of it, but who cares about that. The thing with Mac from what I can see is, he doesnt make players around him better. I dont care how bad an offense is, if you insert some QB's, it will get better and they will enhance what they are. Mac does not do that. Now is that because he is a bad leader? Or is it because of him QB skills? I dont know, all QB's do it different ways, but, coaches are not dumb, they know what we have and dont have, but they can still see things in QB's that set them apart. I dont think they are seeing that with Mac. Is this offense as bad as people say it is? Probably not, is it made worse when you have a bad QB, yeah it will be.
I have watched too many times a stalled offense make a QB change and all of the sudden, things start moving. I have seen this hundreds of times. For some reason in this case, some people want to just say basically Mac is amazing and the team is making him look bad and others will say Mac is **** and it doesnt matter about the team. Neither is correct. Mac is not a good QB, he has bad mechanics, he doesnt have a great arm, he makes bad decisions, he isnt consistent. Now if I go out and get a good receiver next year, is he now a good QB? No. It might add some points, it might have a few more drives actually go past the 50, maybe, but you are always going to be limited.
The idea of hey if we add this and this, then Mac can be a pro bowler, no. A QB is good because they are good or they are bad because they are bad. Whats around them might make something go up or down, but it does not change what they are. In 20 years, we watched hundreds of players come in and out of the offense on the pats, and they kept winning. Now sometimes it was 14-2 juggernaut and sometimes it was 11-5 nt make it to superbowl, but Brady didnt get worse or better, he was just Brady, he made the best of what was there and made what was there better. Mac has not shown the ability to do that. There are many things wrong with his game, and saying oh its because of this on the team and then he will be good, is false. He would have to become better or nothing will ever be good enough to win much.
Now from an actual real fact of what the offense is. The oline has some inconsistency, its not off the wall terrible, but its not great. They are ranked 14th in pass protection from a grading standpoint, so basically in the middle. There are teams who move the ball with worse olines from that standpoint. A good QB with good awareness and pre snap reads, and pocket presence, would make this oline better. Receivers. Not an all star bunch but enough good to just say they are the whole problem. They have two very good TE's that get seperation, get open and catch the ball as good as its been since Gronk, this from a grade standpoint. Hunter was damn good on another team. The receivers vary on seperation, but its not near worst in the league right now. People scream about drops like its a constant. Right now the pats are 22nd in drops, meaning, 21 teams in the league have more drops. That is not a problem, its just highlighted because everyone that has happened gets talked about like its the reason Mac is not good. Its silly and false
Finally. Mac is not a mentally strong QB. He is a bit fragile. He seems to get upset very easy, he seems to go behind peoples back to gripe about stuff, he seems to not hide very well his issues with things. He at this point does not seem like he handles adversity at all, which translates to, in big game situations, can he stay mentally strong and lead the team? I dont think he can.
With all that said, I have no idea what he will be, what will change with him and what he could turn into. But right now, the idea of just going out and spending a ton of money to try and make him serviceable is probably not the best track of success. QB's have to adjust and adapt to what is around them and make that better, and then you add parts to get more plays and make the team better.
Anyway, thats my take. At this point I dont think he is the guy and its more than his physical tools as to why.