I find it interesting that the article suggests that Brady shouldn't be needed to take up such a large piece of the pie, only a month or so after the season ended where the Patriots ran the ball almost 300 times or the 2nd most in the league.
Well, they ran far more plays than anyone else in the league as well, so that number is just a little bit deceptive.
Here are the percentages of running play the Pats have had each season since 2001 (again, skipping 2008 since Brady missed the entire season):
Year - Total Plays - Rushes (%)
2001 - 1001 - 473 (47.3%)
2002 - 1031 - 395 (38.3%)
2003 - 1042 - 473 (45.4%)
2004 - 1035 - 524 (50.6%)
2005 - 1031 - 439 (42.6%)
2006 - 1055 - 499 (47.3%)
2007 - 1058 - 451 (42.6%)
2009 - 1076 - 466 (43.3%)
2010 - 986 - 454 (46.0%)
2011 - 1082 - 438 (40.5%)
2012 - 1191 - 523 (43.9%)
So they ran the ball more than anyone else in 2012, but as a percentage of their total offensive plays, that only ranked 6th most since 2001.
I still don't understand what we're arguing about. Again, which premise is not true?
(1) At some point in his career, Tom Brady will decline in ability and effectiveness. (in other words, he just won't be as good as he is/was in his peak)
(2) Tom Brady's decline has already begun, even a little. (I know you disagree with this point, but I had to throw it in there b/c it's part of the argument in the article)
(3) The Patriots have the capacity of winning a title even if Brady isn't as good as he is/was in his peak. (sounds like from your last sentence above, your answer is "we don't know")
(4) One possible challenge the Patriots would have to overcome in a Brady decline scenario is that he now takes up more salary cap space than he did when he was young, which means there's less salary cap space to build up the rest of the team.
Again, I can see #2 being in dispute. I cannot see how #1 or #4 are even close to disputable. Brady is not a machine. He's a human athlete who is subject to the ravages of time. He's still better than anyone else, so that decline is later in coming than 99% of athletes, but it'll be here if it hasn't started already. And he *is* taking up more cap space than he did his first few years, which means that there is less money to use on the rest of the team. So I don't see how #4 is disputable.
As for #3, I think most of us believe the answer is yes. They were two frickin' plays away from two more SB titles, so I believe they can do it.