I'm not sure why Preds fans seem to forget this bub Granlund is naturally a LW, he was forced to play RW in Minnesota because all their wingers shoot left (check for yourself).

i think you are going to end up with lineups like this (I still think Turris or Smith is going to be traded):

Forsberg - Johansen - Arvidsson
Granlund - Duchene - Smith/Grimaldi
Tolvanen - Sissons - Smith
Jankrok - Bonino - Watson

* if smith is traded instead of Turris, Sissons plays 3rd RW and Turris 3C *

Tolvanen also plays RW in Milwaukee, so no problems)
I think if Tolvy already ready to NHL Lavy will make this Granlund-Duchene-Tolvanen line.

potentially, I think he will start out on the 3rd pair then maybe work his way up Grimaldi played well last year on the 2nd pair

(they probably wont separate that 1st line just because of their 2-way play)