Most of Dionte's drops seems to be concentration lapses where he's looking to make a move before he secures the catch. Also, he hasn't played much with Ben. DJ played at Akron and then he played with Mason and Duck. Now he's catching balls that are getting to him much faster, not just in terms of velocity but the ball being alsmot on him before he's out of his break. The reaction time is much less.
Basically, i think DJ's drops are something he can overcome. He's made a lot of plays in his young career. Don't forget that he missed a lot of time as a rookie. The Steelers don't have another WR who can do what DJ does on underneath routes.
Exactly. Johnson is a playmaker. The chemistry with Ben will only continue to get better.