Yes, ever since I joined the company, I have been
accepting increasing levels of responsibility.
A good manager knows that part of their job is to train
the employees to fill in for them.
Because my manager has shared knowledge with her
direct reports, each one of us can take up part of her
responsibility when she is away, and together we keep
the company running.
I would not presume to say that I do any part of her job
"better," but I am more comfortable and
knowledgeable about computer software and
hardware than anyone else in the department.
When there is a problem or a question, everyone comes
to me for advice.