Integrity intelligence and energy = a great hire.
Hire someone with high energy high intelligence but low integrity and you´ll get a smart fast-moving thief.
Hire someone with high intelligence high integrity but low energy and you´ll get a shopkeeper not an engine of growth.
Hire someone with high energy high integrity but low intelligence and you´ll get a strong functionary but not a great problem solver or visionary.
It´s better to let your team know a task will take three weeks and deliver in two than the other way around. By under promising and over delivering you´ll build trust.