Pass like him as a player thought he could have been good for USMNT more
we dont need a 31 yr old player when we have a USu23 player at RB
From what I've seen, Lichaj would be an upgrade over Duncan, at least for the next year or two. Long term Duncan might be better.
Having said that, I'm not a fan of spending big money on outside backs in a salary capped league. I'd rather spend the money on the center of the field or on wingers. So even if there's a drop off from Duncan to Lichaj, I'd probably still go with Duncan. Of course, that's assuming the club is going to spend the money on other positions, which with this club can't be assumed.