The things I've seen about Jeffery in terms of potential pro and cons
-Physical talent / the jump ball-hail mary in the bowl game, out jumping 3 dbs for a ball he grabbed away from his body, landed and spun then sidestepped a defender and dove for the goal line
-Durability-play through injuries / played through a broken hand for much of the year
-Possibility of a bad work ethic (weight issues - on field effort - control or the "fight" with Dennard) / interviews will be crucial for him
-Possible lack of speed or ability to separate from faster DBs / combine will really help dispel these rumors or will bring them to light if their true.
Simple as that. If he runs below a 4.59, shows good agility in the drills and shows up under 230 and cut I will go right back to advocating for him at 30. At this point his stock has fallen to the 30-45 pick range and the only way he boosts his stock into the top 20-25 is if he runs a 4.45 or lower.