Negatives: Size is a bit of a drawback, as he has short legs that make it tough for him to simply run over tacklers in tight quarters … While he has good acceleration, he is not really explosive (4.55-second 40-yard dash at the Combine), and along with his short legs he can be run down by defenders in his attempts to go the distance (needs to set up his moves rather than try to enter a foot race) … Has a penchant for carrying the ball exposed working his way up field, and while this has not been much of a problem, he needs to protect the ball better … Has a history of shoulder problems that warrant further medical evaluation … Stamina might be an issue, as he runs hard early in games but tapers off late … Good receiver out of the backfield, but has had several costly drops as he prefers to absorb the ball rather than reach and pluck for it at its high point (poor timing on his leaps).
Compares To: J.J. Arrington, Arizona Cardinals … With only one season of heavy rush load work, Jackson is still a work in progress, but he shows he is a decent underneath receiver with some value as a return specialist … He appears to be very capable of breaking a game open with his speed, but while he flashes brilliance, he also disappears for long stretches on the field, making him appear to be better as a change of pace back than a featured runner … With two shoulder surgeries in two years, his durability is another concern.
NFL.com blurb on Jackson.
For my money, I'd take Pittman wherever he ends up at 1.4. If the above description is anywhere close to reality, the Packers are just getting by until they can land someone like Turner or a high pick next year. Jackson doesn't appear to be a long term solution. Pittman, however, looks to be slipping through the cracks. If he ends up in a place like Denver or Seattle, he could be a long term gold mine, IMO.