I would spend our 3rd round pick on Smith unless the doctors think he's never going to fully recover from his injury. You can throw the 2016 season out the window anyways - it doesn't matter if rookies make an instant impact, because this team isn't going to be competitive this year. If you're looking at 2017-2019, there are not many players I would prefer to a healthy Jaylon Smith.
It's a risk, but it's worth it for a team that's in the middle of a long rebuild. Now is the best time to draft long term upside prospects. I'll be a fan of the pick even if Smith doesn't see the field until 2018.
[ Edited by eastcoast49ersfan on Apr 23, 2016 at 10:31 AM ]