Having Tua Tagovailoa under center is probably the dream scenario for the Los Angeles Chargers in the 2020 NFL Draft, it would just take trading up to one of the first four picks in the draft in order to get him.
The Miami Dolphins have the fifth-overall pick in the draft and absolutely need a quarterback with Tua being the perfect candidate. The Chargers would have to leapfrog the Dolphins, which will be tough, as they have draft capital to move up even further if need be.
The best-case scenario for the Chargers would be working in secrecy right near the draft to secure a deal with the Detroit Lions for the third overall pick.