Whether or not a fourth quarterback sneaks into the top 10 is going to hinge on Cam's meds imho.
You figure the Bengals, Dolphins and Chargers will be in the market for a QB/will be the destination for Burrows, Tua, Herbert.
Who else is taking a QB in the top 10 besides the Panthers? Maybe Oakland trades up from 12 as they have the most capital by virtue of the Mack trade if they fall in love with someone, ditto Indy or Tampa depending on what happens with Jameis (I still think they franchise him).
I'm not high on the guy, but I could see evaluators falling in love with Herbert during the workout season to the point that I'd be pretty surprised if he doesn't go top 10.