From the article.
Mallett had the reputation coming out of college of being an exceptionally talented athlete, but having some off-field baggage. He fell into the third round and was the seventh quarterback taken, despite the Patriots declaring that they had him as the highest-rated quarterback on their board, ahead of even Cam Newton (who went #1 overall that year), Andy Dalton, and others. He has thrown just four passes in his career, completing one for 17 yards and throwing an interception.
Interesting. The Patriots rated a 3rd round QB higher than four 1st round prospects.
Of course, that could just be Belichick-speak.