I really have to laugh at all the "Expert Management Consultants" here.
I was a part timer and a driver ---also drove feeders for a short time. I spent many years in Management at many different levels in many different states and three different countries.
Going into management was a difficult decision but lead to a rewarding and interesting career with many friends --both managements and hourly all over the world.
A UPS job is not easy --it is a very demanding Company. Just as we demand Honesty , Integrity and a hard days work from all union employees --the EXACT same goes for all management.
Some people go into Management for the wrong reasons and fail --others become very successful.
I have to laugh when the same people one hand say that a mgmt job is terrible, cannot lead or make decisions etc etc.---on the other hand all succesful mgmt people are dishonest, dictators, do not know the job etc etc . ?????
If you do not understand ---I will make it simple: Negotiations
Some of the same "EXPERTS" claim Company does not get serious to final weeks ----next day say --Company wants early negotiations to finish quick so that they do not lose volume --?????
My Advice --On your career --Listen to yourself ,Family and Trusted friends.