Ok my friend. First off all Brady has a "sore foot," nothing serious or season ending. Understand that this is the time of year individual talent is evaluated and not the team as a whole. Coaches get the young guys on tape to evaluate technique, positioning and to see how they understand the concepts they have been taught and where they can improve.
Since you are a lifelong Pats fan, let's go back and look at some results in prior preseasons under BB (I'll keep it to after we became an anual SB contender in 2003). In 2004 we were really bad in the preseason and I recall the starters re-enteting the Cinci game in the 4th qtr (like yesterday it was the 2nd game of the preseason). The Pats lost 31-3. Some other results from that preseason, in which the Pats went 1-3, while the finished that season 14-2 and won a SB. For the most part I think preseasons around here are pretty avg. Now, take a deep breath and relax, don't hurt yourself jumping off the bandwagon and lastly wait till the games count to make your judgements on the team.
3rd game: August 28, 2004 Carolina Panthers L 17-20 1-2 record, game on the road @ Bank of America Stadium
4th game: September 2, 2004 Jacksonville Jaguars L 0-31 1-3 record, game was @ Gillette.
2003:4-0
August 7, 2003 New York Giants W 26-6 1-0 Gillette
August 16, 2003 Washington Redskins W 20-13 2-0 FedEx Field
August 22, 2003 Philadelphia Eagles W 24-12 3-0 Lincoln Financial Field
August 27, 2003 Chicago Bears W 38-23 4-0 Gillette
2005: 2-2
August 12, 2005 Cincinnati Bengals W 23-13 1-0 Paul Brown Stadium
August 18, 2005 New Orleans Saints L 27-37 1-1 Gillette
August 26, 2005 Green Bay Packers W 27-3 2-1 Lambeau Field
September 1, 2005 New York Giants L 3-27 2-2 Gillette
2006: 2-2
August 11, 2006 Atlanta Falcons L 23-26 0-1 Georgia Dome
August 19, 2006 Arizona Cardinals W 30-3 1-1 Gillette
August 26, 2006 Washington Redskins W 41-0 2-1 Gillette
August 31, 2006 New York Giants L 23-31 2-2 Giants
Last yr: 2-2
August 10, 2007 Tampa Bay Buccaneers L 10-13 0-1 Raymond James Stadium
August 17, 2007 Tennessee Titans L 24-27 0-2 Gillette
August 24, 2007 Carolina Panthers W 24-7 1-2 Bank of America Stadium
August 30, 2007 New York Giants W 27-20 2-2 Gillette