At 6' 5" 250 lbs Rivers wont clear waivers to get on the practice squad....he has 3/4 pass rusher written all over him. But, I think he makes the team. Long, Quinn, Haynes, Sims and Rivers is a heck of a deep DE group. Of course the real advantage is teams may be forced to face a never tiring rotation of fierce pass rushers. There may not be enough snaps to get Rivers a lot of snaps even with Haynes sliding inside on some passing downs, but, being able to have a true rotation is a benefit to everyone.
Cody Davis got a lot of hype for being athletic, which is is, but he hasnt shown much in games. Worthy of the practice squad based on his athletic ability to get some more time and hope somethings click between the ears.
This administration has proven an ability to find talent....THE most important aspect of staying competitive in the NFL now in my opinion.