Posted by ESPN.com's Tim Graham
Cassel had four touchdown passes by the opening drive of the second half. He finished with 218 yards on 18 completions to help the Patriots remain tied with the New York Jets and Miami Dolphins atop the AFC East.
All three teams won Sunday and are 9-5 with two games left.
With the Patriots' postseason hopes on the line, many were concerned if Cassel could cope. The alternative would've been to insert rookie Kevin O'Connell. But Cassel insisted on playing, a decision that inspired his teammates.
Five years ago this month and on the same field, Brett Favre threw four first-half touchdown passes to beat the Raiders the day after his dad died.
Cassel's father, Greg, was found dead early Tuesday morning in his Southern California home. Cassel left the team Wednesday but returned to practice Thursday at San Jose State, where the team worked out in between games against the Seattle Seahawks and Raiders.
Randy Moss, playing in Oakland for the first time since he was traded from there, caught five of Cassel's passes for 67 yards and two touchdowns.