If planning is so crucial, why do some managers chose not to do it?

Some
managers are poor at managing.
They do not have much experience in the day-to-day actions of the
business,
so they do not understand things like seasonal fluctuations in sales or
staffing
needs. Some of the best managers work their way to the top of a
company in order to understand
how each department works. These managers have
real-world experience in running their
organizations.

Some
managers micromanage aspects of the business so much that
they do not see
longer-term goals. This may happen in a short-staffed organization where a

manager has to take on the role of one or several hourly employees. While the manager is
getting
work done, he/she is not paying attention to the organization's
long-term needs. This may also
lead to manager burnout if he/she feels as
though his/her hard work is not helping the business.
A burned out manager
may also be inattentive to the organization's long-term needs.

Some...