HBSauce
Dirts McGirts
Each of Marleau, Couture, and Pavelski are perfectly capable of playing wing.
Personally, I'd like to keep Thornton-Pavelski down the middle, use Marleau and Couture as LW, Havlat as RW, and trade Clowe for a better fitting RW.
Yes I agree, Pavelski seems to be at his best when he's centering a line.
The lines you posted above seem to be the best combination of current roster players we have.
I'd rather move others before Clowe but if his trade value is high and you can get a RW with more speed and bring it physically then I'd do it.