It pretty much doesn't happen anymore that you have player for player trades. And as for guys like Ramsey or Nelson or Taylor? Highly unlikely to the point of improbable (just a tick before "never".

Player trades are inevitably for draft picks.

Rams probably wouldn't even want a player for Ramsey because should they trade him, it will be because of salary cap issues and they don't want to turn around and acquire a guy they'll have to pay bigtime this year or next. And, if it's a middling player, why do it?

Sorry, but this scenario is one from many years ago; not in the modern NFL.