No.
We have two strong safeties already, two damn good ones. Bringing in Chad suggests one of two things:
*we're benching Grant for one of two players that's a lot less able in pass coverage
or
*we're bringing in Chad as a backup FS or moving Cooper to backup FS, meaning we'd have no depth at FS...we'd have to move Minter in haste in njury situation.
I'm uncomfortable with those two situations. Plus, Cota isn't very reliable in any scheme that suggests safeties having range. He's got the pass coverage range of a linebacker.