I don't think we need more toughness. I think we need more nastiness.
Simmonds is a strong guy (and to his credit having a much better year), but not a nasty player. Clifford is garbage and not worth playing imo, and doesn't bring that element anyway (he pretends to, but he's not that guy). Ritchie is maybe the living incarnation of the Snuggles bear, except worse at hockey.
Nastiness and unpredictability (like the shit that Marchand brings to the table, which to be honest, is like Bunting on steroids) is what prevents a pussy from taking a shot at a star player. He doesn't know if he'll get a skate slicing his tendon, or a spear that separates him from his nuts. That's what we need to let the top guys do their thing when the pressure is on, the game gets more physical, and the refs take naps during games.