Kovi did play RW but with Parise and Henrique it's not the tallest order.
If Ovi can transition well to RW that could solve a lot of problems since Johansson and Laich are both better at LW than RW. Laich-Backstrom-Ovechkin would be our best bet at a good top line if Ovechkin can play there. But his style seems to be very much oriented at attacking from the left. His ability to receive the puck and carry it into the zone should improve substantially but he'd be forced to go around the boards/make plays rather than using his shot as much. It would work great if we had a LW who can finish, but apparently getting Kostitsyn is too hard for this organization.
Orlov should transition to LD while we're at it.
@RH, Johansson seems to be much better at LW since he can use his speed to go around people. Both chances of the puck getting stripped from him and him getting crushed are much lower than at RW. Plus its better from a playmaking perspective.
Off-wing players are the minority and generally have a distinct higher skilled sniping/playmaking style that you can spot when you see it. Ovechkin, Kovalchuk, Gaborik, Sharp, Hossa, Vanek, Tarasenko, Kuznetsov, St. Louis. Seems to be more of a european thing since high skill and offense is king there. Also guys that do more generating of their own offense and less of getting fed by their center since it's harder to receive passes that way.