Two things about Wall, an unnamed Wizards player stood up for Scott Brooks and said that they love playing for him. They don't like playing with John Wall though. [Link](
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Also Zach Lowe discussed the trade kicker that Wall has. If Wall is traded this season the trade kicker would end up costing the Wizards $21 million. If they wait to trade him and do so after the season and the draft this year then the trade kicker would be next to nothing since his super max kicks in and a trader kicker can't pay him more than the max amount he could earn and the super max is the maximum amount he can be paid. That's on Lowe's podcast,
here is the link for that.
So while they may want to move on from Wall, it will be very expensive for them to do so this season. I know they don't have a lot of options but it's unlikely the Wizards turn things around and go on a run this year with Wall or without him unless they can do a trade like the Kawhi deal where they would get a star of sorts in return. No one will part with any sort of star for him though.