It doesn't matter how we finish this season or what pick we have in the draft. We definitely need a veteran QB who can start, for next season. If Darnold proves himself the rest of the season, this can be Darnold, otherwise we need another QB from the roster of weak starters or good backups. As a second QB you then have Matt Corral, who can compete with the veteran.
With this constellation you can go into the draft and try to get the QB you love. If you don't get him, you don't have to take any QB at all, but you can strengthen yourself in other positions.