First thing he does is make Carl take the bandage off so he can see the wound... then he roasts Carl til he cries.
...GOTEEM!
Thats just basic fukkery. I won't ruin anything important...
Something interesting tho is Negan coates his knives and the barrel of his guns with zombie sludge... so if you get stabbed or shot by him you turn undead same as if you were bitten.
Tactic wise he isn't stupid. He's a high-level strategist... he's just an a$$hole.
Yo they gotta do this for the show but I doubt they will