They did that a few years ago in Kansas City Missouri.
Some high schools like Westport were shut down due to budget cuts and low enrollment. It also had terrible academics. Now Southwest high school was doing well. It had a college prep curriculum and was a magnet program so they could kick out the bad kids. They also had strong community support with many local people volunteering. It was a “Let’s work together to fix this” attitude.
Well the district saw a “bad” school and moved the kids to a “good” school and the result - chaos. The bad kids ruined the college prep program. The Principal quit. Then his replacement quit. They bribed another guy to just finish the year out. The superintendent quit (right after getting a big award). Everyday at the school was a near riot. The school ordered all the volunteers out - Why? They were telling the media what was happening and the district wanted to keep it quiet.
Soon all the gains made were ruined.
So you cannot just move all the bad kids to good schools.