This is not complicated for anyone with brains. You put them in the other Democrat districts that need to expand bigly.
You do know that Paul Mitchell won by 30 points, right?
You think this is possible following existing Michigan law (e.g., minimizing county and town splits)?
Yes, indeed, quite easily, especially while including Trump numbers. The existing MI-09 voted 51-43 in this election, and thus has at least 43% of its voters as good people to salvage for fresh Republican districts. Many good people were left in the district in order to encourage Gary Peters not to run in the 11th district against Thaddeus McCotter in 2012. In fact, miserable failure DCCC chairman Steve Israel wanted Peters to run in the 11th in 2012! So that gambit worked.
Trump won Bay County by 13 points. Trump won Saginaw County, and won it bigly outside the city itself. Trump won Macomb County by 9, and won the MI-10 district by 32 points. It's the strongest district in Michigan and readily available to absorb some minimal number of Democrats. All these are massive improvements from Romney numbers.
Here is my map from 2013 (pre Trump).
http://postimg.org/image/7yynszysn/If you prefer, I would eliminate the yellow district chop into Bay County, and the pink district chop into Wayne County.
Most folks who draw Michigan do so while cutting North Oakland County in half.
http://wmugop.blogspot.com/2013/05/9-4-michigan-congressional-map-in-2020.htmlEither works, and both have substantial margin for error.