No, you need at least three fullbacks in my opinion.

your other option would be a 4-1-2-1-2 narrow diamond and put passing up the middle with short passes, but that doesn't help your DC situation.

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If you have time to buy players you can try that, but you never know how they will transition. If you have the money and the game really means a lot to you then I might splurge for a DC scout.