The phrase "to manage the withdrawals" means taking control and handling the process of reducing or stopping the use of something, especially a addictive substance, in a controlled and safe manner. Full definition
This strategy involves actively managing withdrawals from retirement accounts. (fidelity.com)
The measures do not eliminate private ownership, but they do establish a framework for managing withdrawals through local agencies. (dotearth.blogs.nytimes.com)
Click here for guidance on how to manage withdrawals in retirement, and here for advice about ways to assure you'll have income however long you live. (realdealretirement.com)