So Walker would increase regulation of how companies compensate their employees, but do it in a way that actually could be more intrusive than having to channel some of their pay through any overtime worked.
Under the Walker plan government would be dictating that businesses have to allow employees more time off of their jobs. That really could affect staffing, leading to having to train and hire more people for certain positions, etc.
Since you don't know the plan, you'll be more informed when the details come out.
It is damaging government regulation that employees cant be given comp time. Probably first added to the regulations because it aids the Unions.