Nyquist and Helm's speed together would be quite the handful.
I only sit Jurco because before Franzen got hurt he was lighting it up playing with Tatar.
I'd still keep Jurco on the 4th line over Tuzzi. Tuzzi is just too slow and broken now. Jurco can work on his defensive game in that case in a shutdown role. He's got the physical play to do it, he just needs some coaching on positioning and he's good to go.