You have, I would say, 2 choices:
1. give those users the same rights as root - add them to the same groups as root. The plus side is that they would then have full access and you would know which of them did what. The minus side is that they could end up accidentally ruining the system - admins or not, an rm -rf is all too easy to do.
2. sudo access - install that and give them that access. They would then have to purposely type in the sudo command to do any damage and they would be accountable/auditable.
And don't forget to change the root password when you do whatever action you decide.
And welcome to LQ