They require very different skills.
Let’s say an employee wishes to deposit and collect their child from school each day. This will interfere with his/her “normal” working hours. Big deal.
If the employee is important to you, you will probably bend over barckward to “negotiate” a solution. If they are not, you will probably enforce the letter of law (and fire them).
Whatever you decide to do, you are not involved in “negotiating” – you are problem solving.
-How to get rich, p.150