New Orleans has shown a recent commitment to rebuilding their defensive line, drafting Clemson DT Bryan Bresee with a high pick last year. Though he likely wouldn't go as high, I think McKinnley Jackson would fit in well alongside him.
Bresee and Jackson both have elite run-stopping ability due to their pure strength. Both guys also bring the secondary ability to rush the passer from the interior. Having only one player with that skill set can make it really hard on opponents; having two would make you a nightmare to face.
Jackson could help bolster what became a middling rush defense by the end of last season. Though this is a primarily passing league at this point, if you can't stop the run, you'll get gashed against every team smart enough to pound the rock. Jackson could help shore up that aspect of the game down in the Big Easy.
This would also be something of a homecoming for Jackson, who is from Lucedale, Mississippi—just over two hours away. That's obviously something that would be a neat personal note for Jackson as well. No matter where McKinnley ends up, though, I think he'll find the field—he's just too physically dominant.