Question RE: City Council by District

[Paris_of_the_Midwest]

I've read many posts on the forum about having city counsel members elected by district. I've also read a lot about a need to "downsize" Detroit. Specifically, the mayoral candidates mentioned looking into helping people in low density or bad neighborhoods move to more highly concentrated areas where city services can be delivered more effectively and Detroit can reduce the large geographic area it needs to provide services to.

If we have a council by district system will this frustrate attempts to engage in downsizing or "right-sizing" in the city? What council person in a district slated to be "downsized" or that is having residents moved to another district would support this plan? Is it possible council by district could thwart policies that focus resources on areas of the city that have the best chance of surviving and growing? Thanks for the responses.