If you remember, the Patriots didn't stop passing in the 2007 season. That was one reason that so many observers hated that team. Despite that, they still ranked 13th in the NFL in rushing, 11th in YPC, and 9th in the NFL in rushing attempts per game.
According to FootballOutsiders.com, in 2006 when Matt last had prolonged playing time, he was a
better quarterback than Kurt Warner was. Things being equal, Matt was just about a league-average quarterback (-1.2% DVOA, -2.5& VOA).
In 2007, without any kind of a running game and when the team had to pass essentially every down, Matt was terrible. But Matt was never going to be a quarterback that you want to throw the ball 35 times a game.
If you expect Matt Leinart to come in and play like Kurt Warner in the offense that you've seen for the last two years, then yes, you're going to be disappointed. Here's a news flash: Matt Leinart is not going to be 2008 Tom Brady, Drew Brees, Peyton Manning,
or Kurt Warner.
Again, if you have some strategy to get those guys, I'd love to hear it. But unless you consider Daunte Culpepper,
maybe Jason Campbell (although I think he'll get a new deal in Washington), Joey Harrington, and any of the other dregs of the NFL free agent quarterback market an upgrade, then I think you're stuck with Matt.
McNabb and Orton
are not available. What makes you think that Orton would be any better on this team than Matt Leinart would be? Orton was fine last season, but his offensive line was
head and shoulders above what Leinart may be playing behind next year. Also, despite that offensive line, Orton is the ultimate dink-and-dunk passer. He only averaged 7 YPA last year despite having a great deep target in Marshall.