AT&T broke my teamwork spirit. I turned into a person who stated "Give it to me and I'll care for it" I don't want others to know how I do the work. Give the worst most complex work and I'll do it with perfection and never complain. If others ask how I do it I just tell them its too hard to explain or demonstrate and its best I just care for it myself.
Collaboration is a means to optimal company performance but if the company isn't ethical then you have to default to looking out for #1 while providing premium service.
Maybe most of us know this very well, but @12MycWCM-xcv sure painted a good picture how the work environment at AT&T brings the worst in us.