Entering Week 9 of the 2008 campaign, Schilens was named a starter, playing opposite Javon Walker.

In Week 16, Schilens had his best game with the Oakland Raiders, catching three passes for 52 yards including a 20-yard touchdown.

Chaz broke the fifth metatarsal bone in his left foot in August, 2009, but returned to action midway through the season and caught the game-winning touchdown in an upset in Week 15 over the rival Denver Broncos.

In 2010, Schilens had another injury-plagued campaign, playing in only five games and catching five passes total.

[6] On March 4, 2014, Schilens agreed to terms with the Saskatchewan Roughriders of the Canadian Football League.