Yup, boy does it feel like a long-time ago when Vilardi, Lias and Tkachev were looking strong in then pre-season, unfortunately the popcorn started popping and not a single one stuck in the lineup.
The solution to this problem is looking outside the organization, either bringing in someone who can play that role , or bringing in someone to play with AK that lets Iafallo slide down to that 3rd line role. Iafallo will be the best player to play on that line this season, he would stabilize that line and make it better in all facets more than bringing up one of the younger players and hoping they don't struggle again.
Thats my guess on what they do, bring someone in. Bump Iaffalo down to 3rd line and let Brown ride off into the sunset for next season.