The SEALs are the elite exclusive forces of U.S. Navy. Their selection and training is extra-ordinarily austere, some special emphasis on physical health, stamina, and mental accurateness. They are missioned to highly sensitive targets with wide range of missions. The case occurred in 2014, as the head of department assigned to SEALs selection and training absorb whether some participants who would be excellent in the field ousted while some of the poor performance passed through ahead. The case inspects training and selection process, providing some tips and suggestions that could be considered.