The key stakeholder for your ITSM implementation wants to have SLAs on every Task record.

SLAs re recommended in the ITIL framework for problem management

SLAs are be counterproductive to problem management, as the key objective is to permanently fix an error no matter how long that may take

SLAs are available for problem management, but require custom code

SLAs are essential to problem management, as support specialists need to quickly identify root causes