To anyone who watched Jags games, why was Etienne so bad?

Etienne was RB3 last year (PPR) just behind CMC and Mostert. How did he score so many points last year but not this year? It was a nearly identical situation. Is he slower? Is had bad at finding lanes? What even made him good last year?

And yes, i drafted him with my 2nd pick (Breece was my 1st 🥲). JSN, Chase Brown, and Irving carried me to the championship but got cooked by Tee Higgins and Derrick Henry.