Yea not sure what DC's issue is. The only thing salmon has over Field's is shooting (even though he's not that great a shooter). Fields has proven to be a decent point forward option, great at making cuts, and good at guarding 2/3s.
I guess Salmon's also has a bit more poise than Fields. Salmon's does make mistakes at times but he's usually reliable during crunch time. Not sure where field's at mentally right now. He probably has 0 confidence right now because he's riding the pine 99% of the time.