I have to say, I didn't like the balance of the 2nd line with TT and Carts playing together. I think Toffoli has been great on the 4th line, which looked really dangerous several times against StL, and I'd be fine with keeping him there. If you must move him up to the Top 6, I'd prefer maybe moving Williams to King's place and Toffoli to Williams' spot on the 1st line.
2nd this, I don't think he looked great with Carter either.
I'd rather see Penner on the 2nd, have Toffoli slot in with Stoll and Lewis, and move King to the 4th. I think Lewis' speed and Stoll's physical play would open up space for TT.