I'm with Memphis on this one. This kid is legit and has a chance to make this team. IMO he's better than the ILB they drafted Clay Johnston. He's got exactly the skill set they want in their LB's. Johnston has marginal speed to play the position. He's basically the same as Littleton in that he's strictly a zone coverage LB.
Christian Rozeboom has sideline to sideline speed and has shown he's a force inside. He's got coverage skills that Johnston lacks. I like Johnston, but in terms of talent, Rozeboom has a higher ceiling, and IMO can be a much better backup to Kiser or Young. He also might take Reed's spot on the roster as he is better in coverage. The Ram's seemed to favor speed and versatility before they drafted Johnston. On the other hand, Rozeboom fits the scheme better than Johnston. Obviously, Rozeboom was on their radar so why Johnston over Rozeboom? Because of his small school? Regardless if Rozeboom doesn't make at least the PS I would be surprised.
Rozeboom is a developmental player to be sure but so are everyone taken in the 6th & 7th round as well as the UDFAs. What you look for is physical traits and natural athleticism for the position. Rozeboom checks a lot of those boxes. It's his overall athleticism that gives him IMO a higher ceiling than Johnston whom I see as strictly an early 2 down ILB. I feel that Rozeboom has the talent to be able to become a 3 down LB in a couple of years while providing decent backup service.
What I like about him is his quickness, not only in his get-off but in his reads. He can play both man and zone coverage schemes. I've watched a few scouting vids provided by a friend that I can't share here but here is a public domain interview with highlights.
View: https://youtu.be/KcYebjhdT7k