If Pat Mahomes/Rick Grimes is there at 30, I truly doubt they'll pass on him. As you mentioned, too many meetings with the kid to just be smokescreen.
But, if he's already gone, then it could indeed be anybody (although, Tomlin seems to be waving a banner withDerek Rivers name on it).
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LSU does produce a ton of good DBs. I'd have no problem with him, and Tomlin, Colbert, & Lake were at his pro day.
That said, three meetings with Sutton is a huge signal.