Fantasy Upside
Browns running back coach Kirby Wilson called Duke Johnson "an ultimate weapon," which obviously bodes well for him. Johnson's main weapon is as a receiver out of the backfield, which was evidenced by his 61-534-2 receiving stat line as a rookie.
Now he has another year under his belt, and a coach (Hue Jackson) who values talent like Johnson's. "He does so many different things that gives your offense a boost," Jackson said about his running back.
Fantasy Downside
Johnson isn't the only talented running back on the Browns. Isaiah Crowell is listed as the starter on the depth chart, and will see the bulk of the rushing attempts. Most of Johnson's production comes through the air, so his numbers take a bit of a dive in standard formats.
Also, Johnson only scored two touchdowns as a rookie despite playing in all 16 games. He'll need to find the endzone more often to give him added value.
Bottom Line
Considering the Browns gave up 27 points per game last season, it's likely that they'll see themselves trailing opponents rather than leading them. This bodes well for Johnson who will play in more passing sets.
When thinking about Johnson vs. Crowell, imagine Jackson's previous sets of backs -- Giovani Bernard and Jeremy Hill. Johnson will be similar to Bernard, but with a bit more rushing expertise.
He should be a good value in the later rounds of drafts.