Last season, Scaife had 36 catches, 318 yards, and got into the endzone four times. In his career, he has 2,383 yards, and 12 touchdowns.
Don't be surprised if he does join the Rams though. The Rams have a veteran in Billy Bajema, but he is mostly a blocking threat. The Rams are bringing Big Mike, and Fendi Onobun back, and they do show promise, however with Fendis inexperience, and Big Mike's injury history, it might be safe to add a vet. Also, you don't want to throw everything on the Rams rookie Lance Kendricks, if he isn't ready.
If the Rams do sign him, I would think it would mainly be for insurance. He has started before, so he could be a good option for Bradford. Also, the Bengals are bringing Bo in for a visit as well.