The first sack Brady tripped on Mason's leg because Mason had been walked back in the pocket by Jenkins.. That allowed the guy coming from the left to get by Newhouse and get Brady. If you want to blame Newhouse for that, well, I don't know what to say.. (NFL.com has the highlight up in the Game Center)
The 2nd sack was totally Brady's fault since Brady had moved way out of the pocket to the right and it was well beyond 5 seconds before Newhouse's guy got around him to get to Brady...
You're also ignoring that Cunningham had a false start penalty and on two sweeps to the right where he was supposed to be the lead blocker, he didn't get out and back to the LOS before the RB was going by him. He was ZERO help.