If Sullivan wants to get things going this is certainly one way to do things, however, it's a bit unfair to Bunting to be scratched even if his stats show a slump.
In Toronto, Nick Robertson has yet to score a point but finds himself with ice time; same with
Elias Pettersson. Players have slumps, and giving them time to work through it is the best course of action. It's not like Bunting has cost the Penguins games, but he certainly hasn't helped them win so it's a tough call. Bunting has proven in the past he's a capable top-line forward, and if he can gain his confidence back, it'll be a huge boost to the Penguins.