Disclaimer I am a CJ owner
Here's my spin on these two guys. Last week I read that the coaches wanted to have the touches more even between White and CJ (I think it was on ESPN?) well vs KC it was Johnson 18 white 17, I think this is the case going forward, limiting the ceiling for both of these guys. White was banged up(shoulder) the week when CJ got the carries
In my league which scoring is 1 pt for each 10 yards rush/rec and 6pts for each TD, CJ is 5 points better then White, so to say White is a bust is to say CJ's not much better.
Both of these guys have value, I would say White ends up with more TD's and CJ has more yards. By season end in my league, I would not be shocked to see these two guys be within 10 points of each other.
Now if one of these guys get hurt, the other one is gold.