It would be a mistake to think that once you hired a new manager, leading a team is just his concern. First-time managers need a lot of coaching. They typically overwork.
A good idea is to have them undergo additional training. You can use either your company’s curriculum (if you’ve got one) or look for training opportunities outside the company.
Hiring Managers
Very often, people don’t want to hire managers from outside. Sometimes it’s a necessity though. To make a safe choice, make sure this person has the skills you need, discuss their management philosophy, and do the reference check.