Duckworth should get a MD WC although he played like shit 11 of 12 months this year.
In the same time, you have 4 WC to give and not full of players likely to have a WC..
=> Matesovic, Tomic, Hewitt & Ebden (almost sure) in MD
=> Mitchell with a WC & probably Saville.
You have three more WC to give and between Millman, Duckworth, Groth, Klein, Smith, Reid or even Kyrgios, no one is ranked in the TOP 200.. (except Millman 198..)