An ideal scenario would be Williams is upgraded to questionable sometime in the middle of first round, but the C's are dominating the Nets, so they don't rush him back, and the C's win 4-0 anyway.
Then on the other side, the Bucks struggle vs the Bulls with a 7 game series, giving Rob even more time to heal/recover/strengthen before the 2nd round.
Unfortunately, I don't think any of these scenarios are likely, but I can still dream.