The Raiders have been flagged often lately and it has irritated coach Hue Jackson. Oakland enters Sunday's game against Detroit leading the NFL in both infractions (130) and penalty yards (1,116) by a wide margin. "It is a problem," Jackson told Sirius XM NFL Radio this week. "I've got to get it fixed. It's embarrassing." In turn, Jackson has made life tougher on his players during this past week of practice. "Coach was on our a--," Raiders quarterback Carson Palmer said Friday. "It was an intense week. We got back to some of the small things that I think got overlooked when we were on a little bit of a (winning) streak. It was back to fundamentals."