There really is no such thing as risers and fallers in the draft as far as the teams are concerned.
What actually happens is that the combine gives the media and guys like myself (I will not speak for Alyo, PB, Avenger, etc) to catch up to what scouts and teams already know.
Example:
Charles Demmings SFA
If I told any of you that I watch reruns of Stephen F Austin games every week, I'd be lying. So I am catching up on him. Great size, tested amazingly and looked really fluid in drills. Scouts knew this, I did not. So for me, he is a riser, for national scouts and GMs, he is what they knew he was.
Colleges also lie about weights and weights. Its the amateur world that finally gets confirmation on actual numbers.
Watch Bryce Lance "rise" up boards. What boards? Internet boards built by media type amateur scouts. The real scouts already have them where they want him. Now is every team the same? No. But I think I made my point.
So when you read the internet and watch TV shows and the talk about risers or fallers, this is what is actually happening.
Don't waste your time looking back, you're not going that way. - Ragnar Lothbrok