Yes but Several top guards go in rd 3 and many top cornerd are found in that range or lower.
Brandon Brooks was a 3rd rounder.
Jhari Evans and Carl Nicks both went after rd 3.
Jabari Greer, Delvin Breaux, Keenan Lewis and Mike McKenzie all went 3rd round or later. Lattimore is the exception to the rule for Saints top cbs drafted highly.
Before that our top corners in rounds 1-2 were the likes of Malcolm Jenkins, Alex Molden, Tracy Porter and Patrick Robinson.
Might even be better to just sign a CB given their history