Scott was placed on season-ending injured reserve Wednesday, leaving the Raiders minus one of their most productive and versatile players.
The third-year defensive end, who tied for the team lead in sacks each of the last two seasons, also was a key member of Oakland's special teams before suffering a torn anterior cruciate ligament while covering a punt against the Steelers.
"I think it's huge," Raiders coach Tom Cable said of not having Scott. "We've been fortunate to not lose too many guys like this. He does do a lot for our football team, playing in base defense as well as third down and (on) a number of special teams. It's a big loss, but we're going to have to rally."
Of the three, Shaughnessy figures to see the most playing time. He is tied with linebacker Kamerion Wimbley for the team lead in sacks with five and has split time with Scott on the right side of Oakland's defensive line all season.
"They're all going to have to play a little more just because of the situation until we can settle on who we feel like can give us some help," Cable said.
Moss was drafted 17th overall in 2007 to be a pass-rusher in Denver's 4-3 defense. His development was slow, however, and the Broncos moved him to outside linebacker when the team went to a 3-4 in 2009. When that failed -- Moss hasn't had a sack since '08 -- Denver gave him his walking papers.
"I'm not the first person that it happened to and I won't be the last," said Moss, who has just five tackles this season. "I'm just going to do what they ask me to do, and whatever ends up happening this weekend, that's exactly what I'm going to do. I'm just learning (and) trying to adjust."
Cable conceded that replacing Scott won't be easy, even though the 26-year-old didn't record his first full sack until the game against Pittsburgh and has just five quarterback hurries this season.
"(Scott's) tempo, his effort to the quarterback has pushed that quarterback to a lot of sacks with the other guys," Cable said. "They've benefited from Trevor's effort, no question."
Notes: The Raiders released a statement given by DE Richard Seymour on Monday regarding his ejection from the loss to Pittsburgh. Seymour apologized for hitting Steelers QB Ben Roethlisberger and called his actions unprofessional. He was fined $25,000 by the NFL earlier this week. ... Injured CB Nnamdi Asomugha (ankle sprain) was limited in practice, but he should be in the lineup against Miami barring a setback.
Copyright 2010 by The Associated Press