I wouldn't get to caught up in who is playing with who yet. Basically they are going to try several things and see what sticks, although I guess the initial " this is what we are thinking" does have something to it.
Sissons with Evangelista and Tomasino isn't the worst thing I've heard of. Gives Sissons someone to put the puck in the net and his defensive game helps them out. Evangelista is the spark plug and if Tomasino can get his stuff together it could be a decent duo.
Although frankly wouldn't mind seeing them try Parsinnen with those two, moving Sissons down kicking McCarron out and seeing how that group looked.