No offense, but this is probably why you are not very good at fantasy football. You CAN predict this shit. CJA was undervalued for two main reasons; disappointed owners from last year and the new trendiness of being WR-obsessed.
Even though he disappointed in 2015, his secondary metrics (YAC, broken tackles) were among the league's best. With Hillman gone, and given how good of a blocker he is, he is going to be on the field a lot. On a team with a rookie QB that will likely want to dump off a lot, no other good options at RB, where the defense sets up the offense with some short fields, and a revamped offensive line...add all that up and I think he's going to have a good year.
One game does not a season make, but we even discussed earlier in this thread that he was one of the names that was falling at least a round below where he should.