Nor is Dulin, nor is Campbell. Dulin has played in 47 career games and has 29 catches, 393 yds (8.36 ypg), 2 TD, and 1 fumble. Campbell has only played in 19 total games in what is now his 4th season, he has logged 43 receptions, 450 yds (10.4 ypg), 2 TD's, and 3 fumbles. Strachan's career numbers are: 10 games, 5 catches, 85 yds (8.5 ypg), and 0 TD's.
Well, the yips would apply to Smith only. Players develop to their ceiling, then level off, then have good and bad years.
Pryor may simply not be suited to OT but gets by well enough against some teams.
I think the major reason for the decline over the years is going from AC and Glow to Pryor and young Pinter, with whatever Smith has been dealing with thrown in. I don't think that coaching is gonna turn Pryor into AC or Pinter into Glow.