Could the Saints use a player like Tavon Austin?

And another thing, we are heavy in picks in the late rounds of the draft. I am sure we'll use some to jump in front for a player we like (as we always do).

Late picks are also perfect for special teams players, that with some work and experience, can become role players at both our offense and defense.

Exactly, plus theres a good chance they'll bring back Snead along with Austin Carr so if you can't upgrade the position with a top tier talent, you upgrade the position by bringing in competition and then having the creme rise to the top. Toss in another low round player that can compete with Lewis as far as return duties and then if he show's hes qualified to compete for slot duties you allow that to happen.