If he continues the 30-10 return average along with the solid kick/punt gunner play, you better believe he has a roster spot on this team. That would earn a roster spot on any team in the league.
Also ask any coach and he will tell you that shimmy is the devil for kickoff return men. The best return men in the legaue do not have shimmy, they hit the correct hole given to them and they are off to the races. Dont bring up Hester either, watch his TD returns and 99% of them have one thing in common, he hits the hole and just goes, there is no wasted movement. Then on Punt return all you need is one shimmy to break the first tackle, after that no wasted movement, get up field and go.
If shimmy added value to a return man then Barry Sanders would have been an awesome NFL return man, but he wasnt. Shimmy in College might work but not in the NFL.