I reckon Salmon did ok in his few NRL games, but not having NSW cup really hurt his chances this year.
Being a utility type player and still very young, he really needed to play each week to find his most suitable position and play himself into some form/get experience.
He only really has had 1 full year of senior footy, last year. In 2018 he was coming back from a serious neck injury (so only 1 full year of footy in 4 years).
Thought he did ok at centre in the panthers trial.
Hopefully he stays, probably comes down to his price and where he sees the best opportunities are.