Why didnt Slim Charles just take the opportunity to knock out Marlo?
Yes, Avon was in the dumps about losing Stringer but they were in a middle of a war and geared up.
So instead of making a call to get the ok, Slim Charles couldve taken the initiative and made his own decision to go in.
They had the element of surprise and Marlo was out in the open. Even if they don't take Marlo out, it would still be a good battle to be had.
The only downside is that Slim Charles had no backup, just the driver and him, so short battle if they cant get away.