Legwand has been a good center. but Nashville plays a zone D, Wings play strict man on man. Winger has less to know in the Wing's D system so its an easier transition. Since we dont absolutely need him at C anymore he should be more effective short term on the wing. Not saying leggy has been bad, but it makes sense why he is seeing time as a shutdown winger.
(this is the same problem Weiss had defensively, besides other things)