Griffith was touted as a physical corner when recruited, with the ability to also play safety. I don’t think safety was considered his “natural” position. If he continues to play CB this season, him moving to S for 2020 seems like a big “if.” And even “if” it happens, there isn’t much depth (and basically no experienced depth) at safety in 2020.
Link: https://247sports.com/Player/Houston-Griffith-75881/high-school-181038/