Thanks for all of the replies, everyone.
I obviously won't get all of them in to this week's mailbag, but any holdovers I'll be sure to include next week. I'll also be posting a new forum topic early next week to gather some new questions, as well.
He was not invited to the Combine. The thought process behind declaring is that you're hoping to earn an invite to the Combine. If you don't get invited, there's a 99.9 percent chance you should return to school. But you can't get invited to the Combine without submitting your name for the Draft first. There's really no downside to it as you now have the option to return to school without losing any eligibility.
D'Angelo Russell played at Ohio State two years ago.