Because Sunbelt is such a large organization, and because there is a serious lack of appreciation for their non-senior management employees, employees are often "just a number". Due to it's size and the "employer's market" they tend to underpay their employees.
The organization allows tyrannical upper managers to consistently over work their employees and make them work under conditions which are inconsistent and often makes personal success impossible. Complaints to HR and upper management about employees being mistreated by department-heads go completely ignored (to say "we are looking into this" and then do NOTHING about it is ignoring the issue).
Additionally, Sunbelt is still using the "the economy is still soft and uncertain" argument to underpay their employees. Most employees still have not had a raise since the economy crashed in 2008, despite the fact that Sunbelt has continued to see record profits year after year. Not to mention what they pay the CEO in relation to employees in middle management and below.
There is little to no life-balance, especially in the "specialty" divisions where employees are expected to "jump" whenever and always... no matter what!
As a [former] employee of over a decade, I personally witnessed Sunbelt change from a great place to work, to being a "sweat shop". Where Sunbelt use to be a company that recognized that every man and woman are out to build their own dreams, and they use to recognize that sometimes it's worth it to spend a little to make sure employees are happy. Now, employee moral is as low as ever and that doesn't seem to matter to upper management at all.