Lot's of times players numbers are dictated by the style of defense. This guy can rush the passer and get there, along with quite a few fringe benefits.
First that report bringing up that he has DE experiance is laughable considering he hasnt been a DE since the 2005 season. They tried using him as a pass rush DE his first 2 season but after failing at that they made the switch to full time LB.
Second, how can you say that bolded part if he never actually did get there.
It is one thing to say the style of defense didnt give him the opportunity to rush the passer, which would be wrong since he only recorded 3.5 sacks the two season he was used mostly as a pass rush DE, but to outright say that he can get there is just an assumption based on athletic ability and not any actual on field performance or tape. The guy hasnt done it in 4 years. Some might say that sacks are not the only thing either which is true but the guy in 4 years the first two being used as a pass rush DE he still only collected 3 QB pressures his whole career.
http://www.nfl.com/combine/profiles/keith-rivers?id=302
"In 49 games at Southern California, Rivers started 35 contests. He finished with 240 tackles (139 solos), 5.5 sacks for minus-42 yards and 18.5 stops for losses of 77 yards. He was credited with three quarterback pressures and gained 36 yards on two interception returns while also deflecting seven passes. He caused five fumbles and recovered six others."
I dont care what scheme you play in 5.5 sacks and 3 QB pressures in 35 starts and 49 total games is absolute crap and no amount of scouting reports can change that. Rivers is not even an average pass rusher. I trust my eyes and actual performace on the field, not cookie cutter scouting reports that every single one of these Mags and web sites copy from each other and read the exact same on 20+ other scouting reports, and the games I saw Rivers did not rush the passer well at all.