I think Toffoli is useless when he's not playing with a good to great passer. He tries to be that cerebral guy and that's just not him.Smith needs to be on a line with a skilled C (Granlund or Wenberg) and an F1 who ideally has some skill (Zetterlundor Kovalenko).
Smith has looked great with Eklund but that line still needs more puck retrieval as Eklund is forced to be the F1 on that line which he can do but is not optimal for him.
I would have Smith take Eklund’s spot on the “Lund” line and move Eklund to Toffoli’s spot with Celebrini. Then Wenberg and Toffoli can play with whichever 4th liner they want to reward.