Given that it’s a one-year deal I think it comes down to they like him, and think he’s good value for a third round pick, but they’re not positive he’s going to “get it” so they’re protecting themselves. It would ensure that they don’t have a glaring need come draft day, though it would still be a need. It’s rare that they enter the draft saying “we must come away with a potential starter at position X”. It’s definitely a ballsy move given their lack of draft capital, and that nothing tells us Sanders is an easy fix at the outside receiver spot. Still a passing offense with him, Amendola, Donald Jones, Edelman, Gronk and Hernando would have some potential.