Biggest fall-offs from last season to this season?

What player in League One had the biggest drop between how they were playing last season and this season?

For me, it has to be Jordan Rhodes. Scored an almost effortless 15 goals, and I think he was top scorer at one point. This season, he has scored 0 goals, only got 1 assist, and is being kept out of the team by Ashley Fletcher, who has scored less goals in his professional career (33) than Rhodes had in one season at 21 years old (35), and has been links with moves to League 2. Part of it was an injury which meant he lost an extra yard of pace but still an insane drop off